# SDR DALA2019011400252

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2019
- Submitted: January 14, 2019
- Operation: Air carrier
- Aircraft: N921DN
- Make and model: Doug MD-90-30
- Registry model: [Doug MD-90-30](https://openairdocs.org/model/mcdonnell-douglas-md-90-30) (OpenAirDocs)
- Aircraft serial: 53583
- Aircraft time: 49,307 hours, 32,858 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Starter
- Condition: Fire
- Location: Apu
- Stage of operation: IN
- How discovered: O
- Nature of condition: A
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2019011400252

## Discrepancy

APU WILL NOT START NO ROTATION. FOUND STARTER ON FIRE, PUT FIRE OUT W/EXTINGUISHER. SUSPECT STARTER RELAY HUNG. R/R R2-63, R2-792 & SHIP BATTERIES. REPLACED STARTER NEG/POS HARNESS P/N 790793-9407-501. R/R APU. OPS CK GOOD. (LP# 5329530)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.