SDR Q2SA708001

Service difficulty report · Fuel Control · Boeing 7472B5F

Difficulty date
April 7, 2008
Submitted
April 9, 2008
Operation
Air carrier
Aircraft
N708SA
Make and model
Boeing 7472B5F
Aircraft serial
24196
Aircraft time
87,290 hours, 14,616 cycles
Engine
Pwa JT9D7R4G2
Engine time
61,943 hours, 11,355 cycles
Part
Fuel Control
Part number
7788004
Part serial
F8189
Condition
Malfunctioned
Location
Nr 4 Engine
Part time
87,406 hours, 14,635 cycles
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
A

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

What was found

ATB AT ANC DUE TO ENGINE PROBLEM. NR 4 ENGINE STALLED DURING CLIMB AT 33,600 FT. REDUCED THRUST TO IDLE. IDLE PARAMETERS N1 37 PERCENT, N2 61 PERCENT, EPR ERRATIC, EGT 483, FF 800. ALL BLEEDS ON, 2 AIR CONDITIONING PACKS ON. 2 AIR CONDITIONING PACKS ON. REMOVED/REPLACED FUEL CONTROL PER AMM 73-12-10. ALSO REMOVED/REPLACED NR 4 ENGINE VANE AND BLEED CONTROL (EVBC) PER AMM 75-31-09. LEAK CHECK AND ENGINE TRIM SUCCESSFULLY ACCOMPLISHED.

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