Service difficulty report · Compensator · Boeing 737890

Difficulty date
January 12, 2023
Submitted
January 24, 2023
Operation
Air carrier
Aircraft
N587AS
Make and model
Boeing 737890
Aircraft serial
35684
Aircraft time
54,098 hours, 15,752 cycles
Part
Compensator
Part number
2020202
Part serial
21289
Condition
Out Of Limits
Location
Lt Fuel Tank
Part time
12,910 hours, 4,086 cycles
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

WHILE ACCOMPLISHING TSR713599, FOUND #1 TANK UNITS, 5 AND 6, OUT OF LIMITS PER AMM 28-41-21-710-801. GROUNDED - YES. ACCOMPLISHED A TANK & COMP UNITS TEST REF B737-800 AMM 28-41-21/501. VERIFIED TU'S 5&6 REQUIRE REPLACEMENT. REMOVED PANEL 532EB AND 532FB FOR ACCESS. REPLACED TU'S 5&6 REF AMM 28-41-21/401. ALL CAPACITANCE VALUES NOW WITHIN LIMITS REF AMM 28-41-21/501. INSTALLED PANELS 532EB AND 532FB REF AMM 22-11-11-400-801. ACCOMPLISHED FUEL QTY AND SYS TEST, OPS NML REF AMM 28-41-00-730-801. ACCESS PANELS HAVE NO LEAKS REF AMM 28-11-00-400-801.