Mechanical & Engine Failure · NTSB ERA16LA195
REPUBLIC P 47D — New York, NY
| Date | May 27, 2016 |
| Location | New York, NY |
| Aircraft | REPUBLIC P 47D |
| Purpose of flight | Aerial Observation |
| Conditions | Day · Visual Meteorological Cond |
| Phase / occurrence | Emergency descent Ditching |
| Pilot age | 56 |
| Pilot total time | 6,400 hrs · High time |
| Time in type | Unknown |
| Fatalities | 1 |
Probable cause
NTSB findings
- Not determined-Not determined-(general)-(general)-Unknown/Not determined - C
- Personnel issues-Task performance-Use of equip/info-Use of equip/system-Pilot - F
- Aircraft-Aircraft power plant-Engine (reciprocating)-Recip eng supercharger-Failure - C
- Aircraft-Aircraft power plant-Engine (reciprocating)-Recip eng cyl section-Damaged/degraded - C
What happened
The World War II-era fighter airplane was part of a three-ship formation performing a photo shoot. About 1,000 ft above the water, the pilot of the accident airplane made a distress call to air traffic control, stating that he had "smoke," and he subsequently ditched the airplane. The airplane landed on the water and subsequently sank. Another pilot in the formation reported that the canopy was partially open before the ditching. The pilot was unable to egress the airplane and drowned.
Examination of the engine revealed evidence of internal seizure. Damage to the inside of the crankcase prevented the removal of cylinders and disassembly of the engine. Oil and metallic fragments were found inside the engine's supercharger. Although the supercharger may have failed as the initiating event, the reason for the engine failure could not be determined due to the excessive internal damage to the engine.
Examination of the pilot's seat belt/shoulder harness restraints and canopy operation, including a functional test of the jettison T-handle, did not reveal evidence of any in-flight anomaly or failure. Although the airplane's operating instructions called for the pilot to jettison the canopy before ditching, the pilot did not do so, and was subsequently unable to fully open the canopy and egress the airplane as it sank.
Toxicology testing revealed diphenhydramine, an impairing medication that causes sedation, altered mood, and impaired cognitive and psychomotor performance in blood and urine specimens. However, the level of diphenhydramine in blood was too low to quantify and therefore any effects from it likely did not contribute to the accident.