# SDR AALA202109281553

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2021
- Submitted: September 28, 2021
- Operation: Air carrier
- Aircraft: [N974AN](https://openairdocs.org/aircraft/N974AN), registered now
- Make and model: Boeing 737*
- Aircraft serial: 30098
- Aircraft time: 57,604 hours, 23,943 cycles
- System (JASC): [2760 · Drag Control System](https://openairdocs.org/jasc/2760)
- Part: Relay
- Condition: Failed
- Location: Zone 100 - Fuse
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202109281553

## Discrepancy

AIRCRAFT WAS GROUNDED: ON INITIAL TAKEOFF POWER UP, AURAL TAKEOFF WARNING. REJECTED TAKEOFF AT ABOUT 40 KNOTS. FIM 27-62-00-810-801 TEST FAILS; SPEED BRAKE MODULE M980 LEFT OUT BOARD BLUE LIGHT DS2 DOES NOT COME ON DURING TEST. REPLACED K2 RELAY ON AUTO SPEED BRAKE CONTROL UNIT M162 PER SWPM 20-81-22.

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