Service difficulty report · Compensator · Boeing 737890

Difficulty date
October 28, 2016
Submitted
November 1, 2016
Operation
Air carrier
Aircraft
N586AS
Make and model
Boeing 737890
Aircraft serial
35189
Aircraft time
34,625 hours, 10,642 cycles
Part
Compensator
Part number
2020201
Part serial
7445
Condition
Failed
Location
Nr 2 Fuel Tank
Part time
123 hours, 44 cycles
Stage of operation
NR
How discovered
V
Nature of condition
O
Precautionary procedure
O

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

What was found

CHECKED DRY CAPACITANCE OF NR 2 TANK. ACFT GROUNDED. ACCOMPLISHED FQIS SYSTEM TEST, DRY CAL AND FOUND NR 2 TANK CAPACITANCE HIGH AT 407.5 AND COMP PROBE CAP HIGH AT 59.4 IAW AMM 28-41-00-730-801. ACCOMPLISHED TANK AND COMP UNITS TEST AND FOUND COMP PROBE F15, TU F1, F9, F10 HIGH IAW AMM 28-41-21-710-801. REPLACED COMP PROBE F15, TU'S F1, F9, F10 IAW AMM 28-41-21. FQIS TEST SHOWS NORMAL READINGS, COMP PROBE CAP 57.90 AND TU'S CAP 396.5 IAW AMM 28-41-00-730-801. #2 TANK FQIS FUEL STICK COMPARISON CHECK GOOD, 96 LB DIFFERENCE, IAW AMM 28-41-00-720-801.