OPINION OF THE COURT
This case returns to us on remand from the United States Supreme Court. The action was originally brought by James E. Gottshall, a railroad worker, against his employer, Consolidated Rail Corporation (Conrail). Gottshall sought damages under the Federal Employers’ Liability Act (FELA), 45 U.S.C. §§ 51-60 (1988), for negligent infliction of emotional distress. Concluding that the FELA provided no remedy for the plaintiffs emotional injuries in this case, the district court granted Conrail’s motion for summary judgment.
Gottshall v. Consolidated Rail Corp.,
Following the denial of its petition for rehearing, Conrail filed a writ of certiorari with the United States Supreme Court to obtain review of this case and of the companion case of
Carlisle v. Consolidated Rail Corp.,
I.
Because the facts of this case have been discussed extensively in earlier opinions, we will be brief. James Gottshall served on a Conrail work crew which was assigned on an oppressively hot August day to replace defective railroad track in a remote location between Watsontown and Strawberryridge, Pennsylvania. Gottshall’s work crew included his friend of fifteen years, Richard Johns. The crew was supervised by Michael Nor-vick. Conrail was under time pressure to prepare for a safety inspection and so the work crew was pushed to complete the task. Conrail provided only one scheduled break, for lunch, and discouraged unscheduled breaks. Conrail did, however, make water available to the men on an as-needed basis. 1
About two and one-half hours into the job, while Richard Johns was cutting a rail, he collapsed. Gottshall and the other workers rushed to Johns’ assistance. Johns, who had high blood pressure and was overweight, was having trouble with the weather conditions. The crew members tended to him until Nor-vick ordered them to return to work. Within five minutes Johns collapsed again. This time it was apparent that Johns was seriously afflicted. Gottshall realized that Johns was having a heart attack and, because Gottshall was the only person at the scene certified in cardiopulmonary resuscitation, he began administering CPR to Johns.
Supervisor Norvick also appreciated that Johns now required immediate medical attention. Norvick’s initial attempts to radio to the base station for help were unsuccessful because, unbeknownst to Norvick, Conrail had taken the base radio off-line for repairs. Norvick finally drove out in his truck to secure help. He summoned paramedics who arrived at the site some forty minutes after Gottshall had begun CPR. By this time, however, Johns had died. The paramedics ordered the crew to leave the body where it lay, covered by a sheet, until the coroner arrived. Shortly thereafter, Norvick directed the crew to return to work. The crew continued working for several hours. The coroner on his arrival determined that Johns had suffered a heart attack caused in part by the heat, humidity, and strenuous activity.
Gottshall experienced a severe reaction to his involvement in the incident. In the days that followed, the crew returned to the site to work the same long hours under the same sweltering weather conditions. 2 Gottshall, however, became increasingly distraught and feared that he too would have a heart attack. After a few days, Gottshall left work and secluded himself in the basement of his home. He was then admitted to a psychiatric hospital where he was diagnosed with major depression and post traumatic stress disorder. His symptoms included extensive weight loss, suicidal preoccupations, insomnia, and nausea.
II.
Gottshall brought this action in the United States District Court for the Eastern District of Pennsylvania pursuant to the FELA, 45 U.S.C. §§ 51-60 (1988). We had jurisdiction *533 on appeal under 28 U.S.C. § 1291 (1988). Following remand from the Supreme Court, we now have jurisdiction under 28 U.S.C. § 2106 (1988).
Our task oh remand is to apply the common law zone of danger test, as defined by the Supreme Court, in reconsidering Gotts-hall’s FELA claim. Both parties agree, and the Supreme Court has advised, that the present factual record is sufficiently developed for this purpose.
See Gottshall,
— U.S. -,
Because this appeal is from the district court’s granting of Conrail’s motion for summary judgment, our standard of review of whether Gottshall’s claim remains actionable under the FELA is plenary.
See Dent v. Cunningham,
Conrail, in pressing its motion for summary judgment, makes two principal arguments which it draws from the Supreme Court’s discussion of the FELA and the zone of danger test. First, Conrail draws an analogy between the facts in this case and those in
Carlisle,
Gottshall vigorously contests both positions. He asserts that the extreme working conditions, which caused Richard Johns’ heart attack and under which Conrail forced Gottshall to work both before and after Johns’ death, caused him subjectively to fear for his physical safety and to suffer a complete emotional collapse with attendant physical manifestations. Gottshall also argues for a broader construction of the zone of danger, either one that does not require a threat of physical impact or one that accepts merely the risk of slight physical contact, such as dust in the eye or smoke inhalation.
A.
In this case, the Supreme Court for the first time recognized a plaintiffs right to recover under the FELA for negligently produced emotional distress.
See Gottshall,
— U.S. at -,
Although the Court was willing to recognize such a duty as a conceptual matter, it also appreciated that, as a practical matter, limitations were warranted to restrict the scope of an FELA employer’s duty. The Court was concerned by what it saw, if recovery were permitted for emotional distress, as the “very real possibility of nearly infinite and unpredictable liability for defendants.”
Id.
at -,
The Court reviewed the “physical impact,” the “zone of danger,” and the “relative bystander” common law tests. It rejected the “physical impact” and the “relative bystander” tests as either too restrictive or inapplicable, and it settled on the “zone of danger” test as the best measure of recovery under the FELA.
Id.
at -,
The Court noted nevertheless that the statute’s primary purpose remained the protection of workers from physical, rather than emotional, perils.
Id.
at -,
Under this test, a worker within the zone of danger of physical impact will be able to recover for emotional injury caused by fear of physical injury to himself, whereas a worker outside the zone will not. Railroad employees thus will be able to recover for injuries — physical and emotional — caused by the negligent conduct of their employers that threatens them imminently with physical impact.
Gottshall,
— U.S. at -,
B.
Although the Supreme Court generally upheld an FELA cause of action for negligent infliction of emotional distress, the Court did not precisely define what situations might place a plaintiff in a position to be within the zone of danger. 4
For instance, does the Supreme Court’s zone of danger test require the imminent
*535
threat of a physical impact or does it require merely a threat of physical harm? In our recent decision in
Bloom v. Consolidated Rail Corp.,
We will first consider whether James Gottshall was subjected to the threat of a physical impact. In their briefs, the parties contest the specific meaning of the term “impact.” Recognizing that we cannot anticipate every possible situation that may give rise to an impact, we decline to provide a comprehensive definition of what constitutes an impact. Suffice it to say that what Gottshall experienced involved no impact and Gottshall therefore was not in the zone of danger, if the test is to be construed to require threat of impact. If the sun’s rays and heated air constitute physical impacts, then many work place situations could give rise to an impact within the meaning of the test. 6 Such an encompassing definition of impact would undercut the Court’s desire to draw reasonable limits to employer liability for emotional distress claims.
We will next consider whether Gottshall was placed in immediate risk of physical harm. Here, the crew was working under time pressure on an oppressively hot August afternoon and the base radio was taken offline for repair. However, as we noted earlier, there is no evidence in the record to indicate that Gottshall, who was thirty four and in good physical condition, was not physically qualified to perform his assigned duties. While it was extremely hot that afternoon in northcentral Pennsylvania, it was still, for purposes of the zone of danger test, within the bounds of conditions under which Conrail crews were expected to work. Indeed, Gottshall does not contend that the conditions under which he was working violated any work rules. In sum we simply do not view the physical working conditions to be extreme and dangerous enough as to place this plaintiff in immediate risk of physical harm. 7
III.
We will, therefore, affirm the district court’s grant of summary judgment in favor *536 of Conrail. We find that Gottshall was not within the zone of danger because Conrail’s negligence threatened him neither with the threat of physical impact nor with the threat of physical harm.
Notes
. There is no evidence in the record to indicate either that the conditions under which the crew was working violated any work rules or work conditions, agreed upon by the union and management or that any union member working on the crew that day was not physically qualified to perform his assigned duties.
Cf. Holliday v. Consolidated Rail Corp.,
[P]laintiffs ... were allegedly injured by performing the normal duties of their jobs as structured by management and as monitored by the union. As work rules and working conditions represent issues that are at the heart of labor-management negotiations, the court will not upset the delicate balance of the collective bargaining agreement absent a more compelling reason.
. The parties do not contest that the radio link was back in commission during this subsequent period.
. By "purely emotional claims," we mean mental disturbance unaccompanied by a contemporaneous infliction of physical injury. This concept is distinguishable from damages for pain and suffering which often attach to claims for physical injury. Moreover, in defining "purely emotional claims” we do not take a position as to whether emotional distress, to be actionable, must produce accompanying physical manifestations in reaction to the mind's disturbance. Because Gottshall’s emotional disturbance did affect him physically, e.g., extensive weight loss, we need not reach that issue.
See Bloom
v.
Consolidated Rail Corp.,
. In moving on to our discussion of the zone of danger, we will not dwell on the negligence of Conrail. Whether Conrail’s conduct placed Gottshall in a zone of danger is a different question than whether or not Conrail's conduct satisfied the requirement of ordinary negligence (which is necessary for FELA liability in any case). That negligence, however, to the extent that Conrail interrupted the crew’s radio link without warning and without providing an alternate means of communication, is admitted by the parties. Because there is agreement on this aspect of Conrail’s negligence, we do not need to go on to resolve whether a combination of other factors, such as the extreme working conditions and/or Conrail’s ordering the crew to go back to *535 work while Jones's body lay covered beside the track, might also constitute negligence on Conrail's part.
. We do not determine at this time whether our definition of impact under the FELA reaches contacts with such intangibles as smoke, gases, or drugs.
See, e.g. Plummer v. United States,
. In
Bloom,
we noted that it is not clear whether a plaintiff would be required, in a FELA action for negligent infliction of emotional distress, to fear physical injury to himself as a prima facie element or whether the lack of such fear would merely be considered in determining damages.
Bloom,
