# SDR CALA2025032603208

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2025
- Submitted: March 26, 2025
- Operation: Air carrier
- Aircraft: [N73251](https://openairdocs.org/aircraft/N73251), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30582
- Aircraft time: 75,250 hours, 27,906 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Drain Mast
- Part number: 34A28013
- Condition: Broken
- Location: Zone 100
- 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/CALA2025032603208

## Discrepancy

DRAIN MAST IS MISSING UNDERSIDE OF AIRCRAFT BY LEFT MLG. SEE PIC DAMAGE TO PANEL ADJACENT TO DRAIN MAST SEE PICS PANEL 194DL REF LOG 4275292 FOR PANEL 194DL DAMAGE REMOVED APU FUEL DRAIN MAST PER MM 28-25-07-020-801 CREATED SDR MAN HOURS UPDATED INSTALLED SERVICABLE APU FUEL FEED LINE DRAIN MAST REF AMM 28-25-07.

---
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.