SDR ASAA2018020823462

Service difficulty report · Flange · Boeing 737890

Difficulty date: February 8, 2018
Submitted: February 12, 2018
Operation: Air carrier
Aircraft: N565AS
Make and model: Boeing 737890
Aircraft serial: 35181
Aircraft time: 43,090 hours, 12,997 cycles
Engine: Cfmint CFM567B27
System (JASC): 7220 · Turbine Engine Air Inlet Section
Part: Flange
Part number: 3402567010
Condition: Cracked
Location: Nr 1 Engine
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 A NR 1 ENGINE INLET INSPECTION IAW T/C 78472000, FOUND THE ENGINE FLANGE CRACKED AT FWD FIRE DETECTOR TRANSPONDER, OTBD HOLE. CONFIRMED WITH HFEC. ACFT GROUNDED. ACCOMPLISHED A REPAIR IAW TASK CARD SBCFM56-7B-72-05801-1. REVERSED ALT DEACTIVATION IAW CHAPTER 5, TABLE 3, ITEMS.