# SDR CALA2026051116162

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2026
- Submitted: May 11, 2026
- Operation: Air carrier
- Aircraft: [N68061](https://openairdocs.org/aircraft/N68061), registered now
- Make and model: Boeing 767424ER
- Aircraft serial: 29456
- Aircraft time: 94,965 hours, 13,368 cycles
- Engine: Ge CF680C2B7F
- System (JASC): [7732 · Engine Vibration Analyzer](https://openairdocs.org/jasc/7732)
- Part: Engine
- Condition: Vibration
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026051116162

## Discrepancy

FAN VIBRATION 4.1 AT CLB THRST TO FL270. AT CRUISE VIB  IS 1.0. NO AIR FRM VIB FELT. OIL TEMP AND PRESS PER CREW DEBRIEF: ALL OTHER ENGINE INDICATIONS WERE NORMAL DUE TO PILOT REPORT OF VIBRATION NOT FELT IN FLIGHT DECK, PERFORMED FIM 77-31 FAULT TREE 808. SWITCHED TO ALTERNATE/EXTERNAL NO.1 ACCELEROMETER. PERFORMED VIBRATION SURVEY PER AMM  TASK 71-00-00-735-320-H03. VIBRATION PEAKED AT 2.1, STATUS MESSAGE ENG L VIB APPEARED. ALSO FOUND LPT PH VIBRATION INDICATION INTERMITTENT FOR NR 1 ENGINE DURING SURVEY. PERFORMED TRIM BALANCE IAW 72-31-00-705-119-H00 MAX VIB AFTER BALANCE WAS 0.2 AT 103% N1. OK TO CONTUNUE.

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