Service difficulty report · Module · Boeing 737990ER

Difficulty date
November 6, 2023
Submitted
November 13, 2023
Operation
Air carrier
Aircraft
N494AS
Make and model
Boeing 737990ER
Aircraft serial
41729
Aircraft time
28,645 hours, 8,721 cycles
Part
Module
Part number
41310203
Part serial
8423
Condition
Faulty
Location
Apu Lubrication
Part time
9,542 hours, 16,414 cycles
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

FOLLOW-UP TO REPORT OF APU NOT STARTING IN FLIGHT WITH FAULT 49-41010. (#PRI2/ETOPS)ETOPS SIGNIFICANT SYSTEM TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. UPON COMPLETION, CONTACT MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS AFFECTED APU IN-FLIGHT START CAPABILITY, MEL 49- 99A IS REQUIRED PRIOR TO FLIGHT. GROUNDED - YES. (RESOLVED ON W/O: 1975292 TASKCARD: N/R-00002 ) REMOVED AND REPLACED APU LUBE MODULE REF AMM 49-91-11. OPS CHECKS GOOD. TSR C/W. SEAMC WILL NOTIFIED.