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19940731032739I

Incident · Minor damage
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FAA incident report · Boeing 747238B · New York, NY · July 31, 1994

FAA Aviation Safety Information Portal

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Date
July 31, 1994 · 21:45 local
Place
New York, NY
Airport
John F Kennedy International
Phase of flight
Climb
Operating rules
Air carrier (Part 121)
Operator
TWRA
Damage
Minor damage
Aircraft
N10024
Reported as
Boeing 747238B
People aboard
477
Fatal injuries
0

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.

Narrative: on July 31, 1994 tower air, flt. #14, returned to jfk int'l. airport, NY due to a fire warning on the no. 2 engine. At 9000' the fire warning light and bell came on. The crew shut down the engine and had to discharge both fire extinguisher bottles to put the light out. The aircraft landed safely after dumping 70,000 lb. Of fuel. Tower air maintenance personnel determined that there was an oil fire in the vicinity of no. 2 engine low pressure turbine case, caused by excess oil in the engine gear box. The excess gear box oil is normally expelled from the breather tube and exhausted to the atmosphere via ducting through the engine cowling. In this incident the ducting was bent and the oil was exhausted inside the engine cowling. Tower air personnel corrected this problem and are establishing a procedure to inspect the breather exhaust system whenever the engine cowling is disturbed. In addition tower air is issuing a memorandum to all service personnel reemphasizing the proper procedures when adding oil to the p&w JT9 engine. The FAA has determined that no further action is required in this incident.

As the FAA filed it

NARRATIVE: ON JULY 31, 1994 TOWER AIR, FLT. #14, RETURNED TO JFK INT'L. AIRPORT, NY DUE TO A FIRE WARNING ON THE NO. 2 ENGINE. AT 9000' THE FIRE WARNING LIGHT AND BELL CAME ON. THE CREW SHUT DOWN THE ENGINE AND HAD TO DISCHARGE BOTH FIRE EXTINGUISHER BOTTLES TO PUT THE LIGHT OUT. THE AIRCRAFT LANDED SAFELY AFTER DUMPING 70,000 LB. OF FUEL. TOWER AIR MAINTENANCE PERSONNEL DETERMINED THAT THERE WAS AN OIL FIRE IN THE VICINITY OF NO. 2 ENGINE LOW PRESSURE TURBINE CASE, CAUSED BY EXCESS OIL IN THE ENGINE GEAR BOX. THE EXCESS GEAR BOX OIL IS NORMALLY EXPELLED FROM THE BREATHER TUBE AND EXHAUSTED TO THE ATMOSPHERE VIA DUCTING THROUGH THE ENGINE COWLING. IN THIS INCIDENT THE DUCTING WAS BENT AND THE OIL WAS EXHAUSTED INSIDE THE ENGINE COWLING. TOWER AIR PERSONNEL CORRECTED THIS PROBLEM AND ARE ESTABLISHING A PROCEDURE TO INSPECT THE BREATHER EXHAUST SYSTEM WHENEVER THE ENGINE COWLING IS DISTURBED. IN ADDITION TOWER AIR IS ISSUING A MEMORANDUM TO ALL SERVICE PERSONNEL REEMPHASIZING THE PROPER PROCEDURES WHEN ADDING OIL TO THE P&W JT9 ENGINE. THE FAA HAS DETERMINED THAT NO FURTHER ACTION IS REQUIRED IN THIS INCIDENT.