# SDR USAAD99091

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N812US
- Make and model: Doug DC-9-81(MD-81)
- Registry model: [Doug DC-9-81(MD-81)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-81-md-81) (OpenAirDocs)
- Aircraft serial: 48092
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Clamp
- Part number: 18J14350
- Condition: Failed
- Location: Lt Engine Pylon
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAAD99091

## Discrepancy

PIT-MHT - FLT 2160 - AFTER TAKEOFF, THE LEFT ENGINE FIRE HANDLE AND THE 2 LEFT DETECTOR LOOP LIGHTS ILLUMINATED.  THE FIRE BELL ALSO RANG.  POWER WAS REDUCED AND THE LIGHTS WENT OUT.  THE AIRCRAFT RETURNED TO THE FIELD AND LANDED WITHOUT INCIDENT.  MAINTENANCE REPLACED A FAILED CLAMP ON THE 13TH STAGE DUCT THROUGH THE ENGINE PYLON.  (M)

---
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.