Service difficulty report · Engine · Boeing 727222

Difficulty date
October 27, 2000
Submitted
December 12, 2000
Operation
Air carrier
Aircraft
N7285U
Make and model
Boeing 727222
Aircraft serial
21563
Aircraft time
63,695 hours, 36,302 cycles
Engine
Pwa JT8D15
Part
Engine
Condition
Malfunctioned
Location
Nr 1, 2, & 3
Stage of operation
LD
How discovered
O
Nature of condition
A, J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

OVER BOOSTED ALL THREE ENGINES ON LANDING. FLAMES SEEN FROM NR 2 AND 3 ENGINES. LARGE EPR FLUCTUATIONS ON NR 2 AND 3 ENGINES. EPR ON LANDING NR 1 = 2.08, NR 2 = 2.04 TO 2.11 AND NR 3 = 2.01 TO 2.08. THIS EPR DATA WAS ON LANDING IN REVERSE. SUPPLEMENTAL DATA UPDATE CHECKED ENGINES PER MM71-00-37 PART C & D, RERIGGED THRUST REVERSER LEVERS DETENT CAMS ON ALL THREE ENGINES. REPLACED HIGH PRESSURE MODULATING VALVE ON NR 3 ENGINE, ADJUSTED THE P&D VALVE ON THE NR 2 ENGINE. INLET AND EXHAUST INSPECTED ON ALL THREE ENGINES AND BOROSCOPED GOOD. ALL THREE ENGINES RUN GOOD. SINCE THE INCIDENT THE ENGINES HAVE BEEN MONITORED BY SFOEP THROUGH ECM AND NO PILOT REPORTS HAVE BEEN MADE ON THE SUBJECT.