Service difficulty report · Control Valve · Boeing 737282

Difficulty date
November 24, 2006
Submitted
November 29, 2006
Operation
Air carrier
Aircraft
N824AL
Make and model
Boeing 737282
Aircraft serial
23045
Aircraft time
53,684 hours, 58,313 cycles
Engine
Pwa JT8D9A
Engine time
57,673 hours, 76,419 cycles
Part
Control Valve
Part number
658385001
Part serial
6324373
Condition
Failed
Location
Nr 1 Engine
Stage of operation
TO
How discovered
O
Nature of condition
R
Precautionary procedure
C

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

What was found

FLT 206 HNL-OGG: DURING TAKEOFF ROLL, NR 1 ENGINE EPR WOULD NOT INCREASE ABOVE 1.53 WITH MORE THAN A TWO THROTTLE KNOB WIDTH SPLIT AND EGT RISING TO 580 DEGREES. NR 2 ENGINE STABILIZED AT 1.89 EPR AND EGT AROUND 530 DEGREES. TAKEOFF WAS ABORTED AROUND 80 KNOTS. AIRCRAFT RETURNED TO GATE WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE NR 1 ENGINE PRESSURE RATIO BLEED CONTROL IAW AMM 75-31-11. OPERATIONAL AND LEAK CHECK WAS PERFORMED WITH NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.