SDR ASAA2016070117239

Service difficulty report · Case · Boeing 737890

Difficulty date: July 1, 2016
Submitted: July 5, 2016
Operation: Air carrier
Aircraft: N593AS
Make and model: Boeing 737890
Aircraft serial: 35107
Aircraft time: 31,879 hours, 9,771 cycles
Engine: Cfmint CFM567B262
System (JASC): 7220 · Turbine Engine Air Inlet Section
Part: Case
Part number: 3402567010
Condition: Cracked
Location: Nr 2 Engine Fan
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 NR 2 ENGINE INLET INSPECTION T/C 7847100, FOUND FAN CASE FLANGE B-1 CRACKED AT 11 O'CLOCK LOOKING FWD AT BRACKET FOR FIRE DETECTOR TRANSPONDER. ACFT GROUNDED. REPAIRED FAN CASE B-1 FLANGE IAW T/C SBCFM56-7B-72-0580-1, OPS AND LEAK CHECKED GOOD. ACCOMPLISHED FIRE DETECTION LOOP RESISTANCE SYSTEM TEST, OPS NORMAL, ALL READING WITHIN LIMITS, IAW AMM 26-11-00-730-801. ACCOMPLISHED ENGINE AND APU FIRE DETECTION MODULE INSTALLATION TEST, OPS NORMAL IAW AMM 26-10-01-400-801.