Service difficulty report · Valve · Doug MD88

Difficulty date
July 30, 2004
Submitted
August 4, 2004
Operation
Air carrier
Aircraft
N158PL
Make and model
Doug MD88
Aircraft serial
49761
Aircraft time
43,030 hours, 30,073 cycles
Engine
Pwa JT8D219
Engine time
35,022 hours, 24,276 cycles
Part
Valve
Part number
766342
Part serial
6152111
Condition
Failed
Location
Lt Side
Part time
659 hours, 392 cycles
Stage of operation
TO
How discovered
O
Nature of condition
M, J
Precautionary procedure
O

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

What was found

CAPTAIN REPORTED HIGH TEMPERATURE ON LT ENGINE. LT ENGINE REACHED 488 DEGREE (C) DURING START AND DURING TAKE OFF REACHED 605 DEGREE (C) AT 1.88 OF EPR'S, REDUCING THRUST LEVER REACHING 595 DEGREE (C) OF EGT FOR A MINUTE AND DURING CLIMB N1 AND N2 WERE ADJUSTED TO 97 AND 98.8 RESPECTIVELY, REACHING 605 DEGREE (C) DURING 10 SECONDS. LT ENGINE WAS INSPECTED IAW MM 72-00-00 AND 71-00-00, ALL CORRECT. PARAMETERS WERE CHECKED VERSUS THE MM BEING WITHIN LIMITS. DURING OVERNIGHT SERVICE, P AND D VALVE AND TEST TUBES NR. 4, 5 AND 8 WERE REPLACED IAW MM 73-13-05 AND 77-21-03 AND ENGINE TESTS WAS PERFORMED IAW MM 71-00-01, ALL CORRECT.

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