Service difficulty report · Hmu · Boeing 737890

Difficulty date
December 21, 2013
Submitted
December 24, 2013
Operation
Air carrier
Aircraft
N508AS
Make and model
Boeing 737890
Aircraft serial
35691
Aircraft time
20,566 hours, 6,393 cycles
Engine
Cfmint CFM567B273
Part
Hmu
Part number
442369
Part serial
BAMW3537MFR
Condition
Malfunctioned
Location
Nr 2 Engine
Part time
11,071 hours, 3,381 cycles
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

AFTER NR 2 ENGINE START, ENGINE CONTROL LIGHT ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED FIM TEST TASK 73-06-801 FOUND FAULT NR 2-75-20582. PERFORMED ACTUATORS TEST IAW 8-732-AMM 71-00-00. ACTUATORS TEST, OPS CHECKED GOOD. NO OTHER FAULTS FOUND. OK FOR SERVICE. REPLACED NR 2 HMU, IAW MTC N8473000 AND MTC N8473001. NO LEAKS NOTED. OPS CHECKED NORMAL, IAW AMM 71-00-00-800-811-F00.