Service difficulty report · Pcu · Boeing 737524

Difficulty date
October 18, 2012
Submitted
October 18, 2012
Operation
Air carrier
Aircraft
N58606
Make and model
Boeing 737524
Aircraft serial
27319
Aircraft time
47,864 hours, 24,955 cycles
Part
Pcu
Part number
654476122
Part serial
11587A
Condition
Leaking
Location
Aileron
Part time
47,860 hours, 24,952 cycles
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

DURING CRUSE ENG 1 A HYD PUMP LOW PRESS LIGHT ILLUMINATED. FOLLOWED BY GRADUAL DEPLETION OF SYS A HYD. FLUID LEVEL, FOLLOWED B Y ELECT HYD A PUMP, PUMP LOW PRESSURE LIGHT. FOUND A SYS LOWER AILERON PCU LEAKING REMOVED & REPLACED SYS A AILERON PCU IN REF TO AMM 27-11-71 LEAK & AMP; AJUSTMENT TEST GOOD . R & R A SYS EDP & AMP; EMDP CASE DRAIN PLUS PRESSURE MODULE FILTERS FOR BOTH PUMPS. ALL CLEAN IAW 29-15-34 AND 29-15-91.