SDR ASAA2012080392661

Service difficulty report · Bolt · Boeing 737890

Difficulty date: August 3, 2012
Submitted: August 6, 2012
Operation: Air carrier
Aircraft: N590AS
Make and model: Boeing 737890
Aircraft serial: 35687
Aircraft time: 17,396 hours, 5,472 cycles
Engine: Cfmint CFM567B273
System (JASC): 7160 · Engine Air Intake System
Part: Bolt
Part number: HL11VAZ64
Condition: Damaged
Location: Nose Cowl
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

NR 1 ENG INLET AND FAN BLADES DURING DETAILED INSPECTION, FOUND ONE SCREW LOOSE, AND APPEARS TO BE SHANKED OUT WITH DAMAGE TO FASTENER COUNTERSINK, AT 2:30 O`CLOCK POS, ALF (M), IN ENGINE NOSE COWLING. REMOVED FASTENER AND COUNTER SINK WASHER AND REPLACED WITH OVERSIZED FASTENER IAW CMM 71-11-22, REPAIR GENERAL.