# SDR CNMA20060024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2006
- Submitted: October 25, 2006
- Operation: Air carrier
- Aircraft: [N369AX](https://openairdocs.org/aircraft/N369AX), registered now
- Make and model: Boeing 757-28A
- Registry model: [Boeing 757-28A](https://openairdocs.org/model/boeing-757-28a) (OpenAirDocs)
- Aircraft serial: 28161
- Aircraft time: 31,678 hours, 8,826 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 727792G
- Part serial: A0196
- Condition: Disconnected
- Location: Lt Generator
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CNMA20060024

## Discrepancy

L GEN DISCONNECT IN FLIGHT.  TROUBLESHOT PER FIM 24-20.  BITE CHECK OF BPCU SHOWED "SERVICE IDG". " IDG/PMG WIRING" AND "UNDER FREQ TRIP" FOR L GEN SYS INSPECTION OF IDG REVEALED LOW OIL LEVEL AND DPI NOT EXTENDED.  CHECKED LINES, TIGHTENED.  OIL IN LINE.  REMOVED SCAVENGE FILTER AND CHECK FOR CONTAMINATION PER MM 24-11.  NO CONTAMINATION FOUND.  INSTALLED FILTER PER MM 24-11.  DRAIN AND SERVICED IDG PER MM 12-13.  RAN ENG AT GATE 75 PERCENT N3 FOR 10 MINS, NO LEAKS.  TAXIED A/C OUT, RAN L ENG FOR 30 MIN AT 75 PERCENT N3 EVERY 5 MIN FOR 5 MIN.  NO LEAKS NOTED.  L IDG OPS NORMAL BPCU BITE CHECK OF LEFT GEN SYS OK.

---
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.