Service difficulty report · Igniter · Boeing 737890

Difficulty date
October 8, 2012
Submitted
October 10, 2012
Operation
Air carrier
Aircraft
N506AS
Make and model
Boeing 737890
Aircraft serial
35690
Aircraft time
16,570 hours, 5,298 cycles
Engine
Cfmint CFM567B273
Part
Igniter
Part number
90722151
Condition
Inoperative
Location
Nr 1 Engine
Stage of operation
NR
How discovered
9
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

NR 1 ENGINE WILL NOT START USING LT IGNITER. ACCOMPLISHED EEC L/R AUDIBLE TEST IAW AMM 71 00 00 150 801, FOUND LT IGNITER WEAK. REMOVED BOTH IGNITER PLUGS AND FOUND THEM SEVERELY WORN. REPLACED IGNITERS IAW 74 21 02 400 801. R & R IGNITION LEADS LT & RT IAW 74 21 01 000 801 AND 74 21 01 400 801. ENGINE STARTED USING LT AND RT IGNITERS. BITE TEST NO FAULTS NOTED.