Service difficulty report · Overheat Loop · Boeing 737890

Difficulty date
February 27, 2017
Submitted
March 2, 2017
Operation
Air carrier
Aircraft
N534AS
Make and model
Boeing 737890
Aircraft serial
35202
Aircraft time
24,219 hours, 7,035 cycles
Part
Overheat Loop
Part number
90202001
Condition
Failed
Location
Tailpipe
Stage of operation
NR
How discovered
9
Nature of condition
J
Precautionary procedure
O

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

What was found

APU OVERHEAT DETECTOR INOPERATIVE CAUTION LIGHT ILLUMINATED. ACFT GROUNDED. REMOVED AND REPLACED M1925 APU TAILPIPE OVERHEAT DETECTOR IAW AMM 26-15-01-000-802 & AMM 26-15-00-400-802. PERFORMED APU FIRE DETECTION OPERATIONAL TEST IAW AMM 26-15-00-710-801, ALL TESTS PASS.