# SDR ASMF20180902717

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 2018
- Submitted: September 27, 2018
- Operation: Air carrier
- Aircraft: N342AM
- Make and model: Boeing 737-800
- Registry model: [Boeing 737-800](https://openairdocs.org/model/boeing-737-800) (OpenAirDocs)
- Aircraft serial: 34262
- Aircraft time: 41,887 hours, 18,675 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Seal
- Condition: Leaking
- Location: Oil Drain
- Stage of operation: IN
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF20180902717

## Discrepancy

DURING OVERNIGHT CHECK, IT WAS DETECTED AN OIL LEAK IN THE LH ENGINE. MAINTENANCE PERSONNEL PERFORMED ENGINE 3A IDLE-POWER LEAKING TEST, DETECTING AN OIL LEAK ON N2 PAD DRAIN SEAL OF 60 DROPS PER MINUTE, BEING OUT OF LIMITS IAW AMM 71-71-00; SO THE MAGNETIC SEAL P/N 340-155-305-0 WAS REPLACED IAW AMM 72-63-00, TESTED CORRECT.

---
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.