# SDR UALA2011040401599

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2011
- Submitted: April 11, 2011
- Operation: Air carrier
- Aircraft: [N797UA](https://openairdocs.org/aircraft/N797UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26924
- Aircraft time: 58,096 hours, 8,310 cycles
- Engine: Pwa PW40903
- System (JASC): [3830 · Waste Disposal System](https://openairdocs.org/jasc/3830)
- Part: Module
- Part number: ELM80411
- Part serial: E13997
- Condition: Faulty
- Location: Waste System
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011040401599

## Discrepancy

WASTE SYSTEM FAILURE, FLIGHT DIVERTED.  RPL LOGIC CONTROL MODULE FOR NR 1 WASTE TANK PER MM.  RPL DOOR 3 FWD TOILET ASSY PER MM.  FOUND FAULT MESSAGE 38-110 00 AND REPLACED I-O CARD M24400A.  LATCHED MESSAGE CLEARED.

---
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.