# SDR ASAA2012080392661

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 3, 2012
- Submitted: August 6, 2012
- Operation: Air carrier
- Aircraft: [N590AS](https://openairdocs.org/aircraft/N590AS), registered now
- 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](https://openairdocs.org/jasc/7160)
- Part: Bolt
- Part number: HL11VAZ64
- Condition: Damaged
- Location: Nose Cowl
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2012080392661

## Discrepancy

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.

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