Service difficulty report · Valve · Doug DC862

Difficulty date
January 5, 2002
Submitted
January 7, 2002
Operation
Air carrier
Aircraft
N1808E
Make and model
Doug DC862
Aircraft serial
46105
Aircraft time
68,052 hours, 26,477 cycles
Engine
Pwa JT3D7
Engine time
58,257 hours, 17,595 cycles
Part
Valve
Part number
563883
Part serial
BN6
Component
Engine
Component part number
JT3D7
Stage of operation
TX
How discovered
O
Nature of condition
E
Precautionary procedure
O, E

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

What was found

LOG PAGE 108167. DISCREPANCY:ON ATART UP WHEN # 2 ENGINE THROTTLE IS ADVANCED ENGINE SURGES AND VIBRATES. WHEN REVERSE IS SELECTED TR TRANSLATES AND BUCKET DEPLOYS BUT ENGINE DOES NOT ACCELERATE IN REVERSE. CORRECTIVE ACTION: REMOVED AND REPLACED #2 ENGINE SURGE BLEED VALVE IAW MM 75-30-3, OPS CK NORMAL IAW MM 71-00. THRUST REVERSER OPS CK IAW MM 78-30-0 AFTER SURGE BLEED VALVE CHANGE. AIRCRAFT RETURNED TO SERVICE

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