19970328003799A

Accident · Substantial damage

FAA accident report · Piper PA-31-350 · Nome, AK · March 28, 1997

Date
March 28, 1997 · 17:11 local
Place
Nome, AK
Airport
Paom
Phase of flight
Final Approach
Operating rules
General operating rules (Part 91)
Operator
ENHA
Damage
Substantial damage
Aircraft
N4105D
Reported as
Piper PA31350
Reported engine
Lycoming TIO540J2BD
People aboard
3
Fatal injuries
0
Pilot’s flight hours
7,275 total1,550 in this make and model189 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Experienced an engine fire on landing. (.4)the airplane was on a short final approach to land when the pilot noticed flames coming from the left engine nacelle. He turned off the fuel to the left engine, and made an uneventful landing. The fire continued to burn after landing, and the local fire department extinguished the fire. Postaccident inspection disclosed a leaking engine driven fuel pump. The pump was leaking where the relief valve cover is fastened to the fuel pump body. The screws which fasten the cover to the pump were found to be finger tight. Once the screws were refastened to the recommended torque values, the leak stopped. Other, new, fuel pumps of the same type were tested for leaks. Four of the seven pumps tested leaked, and were found to have relief valve cover screws which were under torqued. This type of fuel pump has an extensive history of leaks, and service bulletins had been issued reference inspection and refastening of the cover screws. The accident airplane was in compliance with the factory service bulletin(s). The fuel pump manufacturer and the engine manufacturer have issued new service bulletins which addres s repetitive inspections of the fuel pump.

As the FAA filed it

EXPERIENCED AN ENGINE FIRE ON LANDING. (.4)THE AIRPLANE WAS ON A SHORT FINAL APPROACH TO LAND WHEN THE PILOT NOTICED FLAMES COMING FROM THE LEFT ENGINE NACELLE. HE TURNED OFF THE FUEL TO THE LEFT ENGINE, AND MADE AN UNEVENTFUL LANDING. THE FIRE CONTINUED TO BURN AFTER LANDING, AND THE LOCAL FIRE DEPARTMENT EXTINGUISHED THE FIRE. POSTACCIDENT INSPECTION DISCLOSED A LEAKING ENGINE DRIVEN FUEL PUMP. THE PUMP WAS LEAKING WHERE THE RELIEF VALVE COVER IS FASTENED TO THE FUEL PUMP BODY. THE SCREWS WHICH FASTEN THE COVER TO THE PUMP WERE FOUND TO BE FINGER TIGHT. ONCE THE SCREWS WERE REFASTENED TO THE RECOMMENDED TORQUE VALUES, THE LEAK STOPPED. OTHER, NEW, FUEL PUMPS OF THE SAME TYPE WERE TESTED FOR LEAKS. FOUR OF THE SEVEN PUMPS TESTED LEAKED, AND WERE FOUND TO HAVE RELIEF VALVE COVER SCREWS WHICH WERE UNDER TORQUED. THIS TYPE OF FUEL PUMP HAS AN EXTENSIVE HISTORY OF LEAKS, AND SERVICE BULLETINS HAD BEEN ISSUED REFERENCE INSPECTION AND REFASTENING OF THE COVER SCREWS. THE ACCIDENT AIRPLANE WAS IN COMPLIANCE WITH THE FACTORY SERVICE BULLETIN(S). THE FUEL PUMP MANUFACTURER AND THE ENGINE MANUFACTURER HAVE ISSUED NEW SERVICE BULLETINS WHICH ADDRES S REPETITIVE INSPECTIONS OF THE FUEL PUMP.

Other reports on N4105D · 4

Matched to the same aircraft by N-number and date.