# SDR ASAA2015022710821

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 27, 2015
- Submitted: March 4, 2015
- Operation: Air carrier
- Aircraft: [N570AS](https://openairdocs.org/aircraft/N570AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35185
- Aircraft time: 30,701 hours, 9,127 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7260 · Turbine Engine Accessory Drive](https://openairdocs.org/jasc/7260)
- Part: Bolt
- Condition: Broken
- Location: Drive Pad
- 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/ASAA2015022710821

## Discrepancy

WHILE ACCOMPLISHING T/C 78472020 DRIVE PAD BOLT AT LWR INBD AT TORQUING HEAD SNAPPED/BROKE OFF.  REMNANTS OF BOLT STUCK IN DRIVE PAD.  ACFT GROUNDED. R & R NR 2 ENGINE STARTER DRIVE PAD ASSY IAW ESM 72-63-00-040/430-001 AS APPLICABLE.  ACCOMPLISHED ENGINE TESTS IAW MM 71-00-00-800-811-F00, TABLE 502.

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