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19960617026529I

Incident · Minor damage
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FAA incident report · Aircraft · New York, NY · June 17, 1996

FAA Aviation Safety Information Portal

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Date
June 17, 1996 · 21:30 local
Place
New York, NY
Airport
John F Kennedy International
Phase of flight
Normal Cruise
Operating rules
Air carrier (Part 121)
Operator
TWRA
Damage
Minor damage
Aircraft
UR062
Reported engine
Pratt & Whitney JT9D7AH
People aboard
420
Fatal injuries
0
Pilot’s flight hours
10,000 total3,000 in this make and model170 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.

Narrative: in cruise at FL 350 just before top of descent at 0055Z the #2 engine gen. Open light and csd low oil pressure light illuminated. The csd oil temperature by now was over 150 degrees c and the kw was -20KW. The feo was unable to disconnect the csd. Pmg indications were 8000 RPM and 25 volts. The captain noticed that we had a low oil pressure light on #2 engine. The oil pressure was fluctuating between 35-40 PSI,. At 0100Z the engine was shut down and the approach was continued. The descent checklist was completed. It was noted that the #2 engine nacelle temp's were over 9. Both a and b fire loops and fire detect light were on, moments later the fire bell sounded. The engine fire, severe damage/separation checklist was used and the fire bottles were discharged. Upon landing at jfk, the CFR responded. A fire was still observed and was extinguished. The pax were deplaned on the taxiway and bussed to the terminal. Upon maintenance investigation, it was noted that the engine angle gear box had burnt. When the agb was removed from the engine, it was observed, due to the csd not disconnection that the generator shaft broke at the wrong point and caused the fire. The csd and generator were sent by the NTSB to be inspected by their respective oem's. this investigation is in progress.

As the FAA filed it

NARRATIVE: IN CRUISE AT FL 350 JUST BEFORE TOP OF DESCENT AT 0055Z THE #2 ENGINE GEN. OPEN LIGHT AND CSD LOW OIL PRESSURE LIGHT ILLUMINATED. THE CSD OIL TEMPERATURE BY NOW WAS OVER 150 DEGREES C AND THE KW WAS -20KW. THE FEO WAS UNABLE TO DISCONNECT THE CSD. PMG INDICATIONS WERE 8000 RPM AND 25 VOLTS. THE CAPTAIN NOTICED THAT WE HAD A LOW OIL PRESSURE LIGHT ON #2 ENGINE. THE OIL PRESSURE WAS FLUCTUATING BETWEEN 35-40 PSI,. AT 0100Z THE ENGINE WAS SHUT DOWN AND THE APPROACH WAS CONTINUED. THE DESCENT CHECKLIST WAS COMPLETED. IT WAS NOTED THAT THE #2 ENGINE NACELLE TEMP'S WERE OVER 9. BOTH A AND B FIRE LOOPS AND FIRE DETECT LIGHT WERE ON, MOMENTS LATER THE FIRE BELL SOUNDED. THE ENGINE FIRE, SEVERE DAMAGE/SEPARATION CHECKLIST WAS USED AND THE FIRE BOTTLES WERE DISCHARGED. UPON LANDING AT JFK, THE CFR RESPONDED. A FIRE WAS STILL OBSERVED AND WAS EXTINGUISHED. THE PAX WERE DEPLANED ON THE TAXIWAY AND BUSSED TO THE TERMINAL. UPON MAINTENANCE INVESTIGATION, IT WAS NOTED THAT THE ENGINE ANGLE GEAR BOX HAD BURNT. WHEN THE AGB WAS REMOVED FROM THE ENGINE, IT WAS OBSERVED, DUE TO THE CSD NOT DISCONNECTION THAT THE GENERATOR SHAFT BROKE AT THE WRONG POINT AND CAUSED THE FIRE. THE CSD AND GENERATOR WERE SENT BY THE NTSB TO BE INSPECTED BY THEIR RESPECTIVE OEM'S. THIS INVESTIGATION IS IN PROGRESS.