# SDR GTIA970338

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N947ML
- Make and model: Doug DC-9-32
- Registry model: [Doug DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (OpenAirDocs)
- Aircraft serial: 47514
- System (JASC): [2450 · AC Power Distribution System](https://openairdocs.org/jasc/2450)
- Part: Relay
- Part number: 914F5674
- Condition: Sticking
- Location: Apu
- Stage of operation: IN
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA970338

## Discrepancy

PIT - FLT 202 - APPARENTLY THE RIGHT A/C BUS HAS AN APU RELAY STICKING WHICH WILL NOT ALLOW ANY OTHER POWER SOURCE TO POWER THE RIGHT A/C BUS.  THIS OCCURS EVEN WITH THE APU SHUT DOWN.  RESET CROSS-TIE RELAY.  APU GEN SYSTEM INOP.  TRANSFERRED DMI LOG NR 00712 IAW MEL 24-1-2 CAT C.  REMOVED AND REPLACED RT AUXILIARY RELAY IAW DC-9 MM J24-20-6.  PERFORMED A/C CROSS-TIE CHECK WITH ENGINES NR 1 AND NR 2 RUNNING.  A/C CROSS-TIE CHECKS GOOD.  OPS CHECK NORMAL IAW FCOM.  CLEARED DMI NR 00712.  PLACARD REMOVED AND DISPATCH NOTIFIED THROUGH MAINTENANCE CONTROL.  (M)

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