# SDR ASAA2023030342193

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2023
- Submitted: March 6, 2023
- Operation: Air carrier
- Aircraft: [N558AS](https://openairdocs.org/aircraft/N558AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35177
- Aircraft time: 59,601 hours, 17,533 cycles
- System (JASC): [7600 · Engine Controls](https://openairdocs.org/jasc/7600)
- Part: Brake Assy
- Part number: 254A12906
- Condition: Faulty
- Location: Aisle Control St
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023030342193

## Discrepancy

AFTER ENGINE START-UP, UPON PUTTING POWER TO BOTH ENGS, #2 ENG SHOWED "ENG FAIL" OVER EGT INDICATOR. GROUNDED - YES. ACCOMP #2 ENG EEC BITE PER B737-800 AMM 71-00-00. NO FAULTS LOGGED INTO COMPUTER. ACCOMP B737-800 FIM 73-05 TASK 805, EEC INPUT MONITORING-NO FAULTS FOUND. ACCOMPLISHED VISUAL INSPECTION OF THE FUEL PUMP IMPELLER, NO DEFECTS FOUND. ALL OTHER TASKS PER FIM 73-05 TASK 805 PASSED. REMOVED AND REPLACED R568 DURING FIM 73-05 TASK 805. REPAIR CONF SUCCESSFUL- UNABLE TO DUPLICATE FAULT. PINS 9 TO 7 HAD HIGH RESISTANCE, 2.2-80 OHMS OF START BRAKE ASSY P11290. REPLACED #2 START BRAKE ASSY. OP CK NORMAL. REF AMM 76-11-10.

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