# SDR CALA2026091419388

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2026
- Submitted: September 14, 2026
- Operation: Air carrier
- Aircraft: [N677UA](https://openairdocs.org/aircraft/N677UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 30029
- Aircraft time: 89,636 hours, 16,827 cycles
- Engine: Pwa PW4060
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026091419388

## Discrepancy

HIGH HEAT ODOR ON CLIMB FO SIDE HAD ELECTRICAL BURNING ODOR SEVERAL TIMES IN CLIMB & CREW REPORTED FLIGHT DECK WAS COOL BEFORE TAKEOFF. DURING CLIMB NOTICED FWD INSTRUMENT PANEL WAS VERY HOT BUT PACK ON FULL COLD & WAS BLOWING COLD AIR.  HOTTER ON FO SIDE THAN CAPT SIDE. FO NOTICED ELECTRICAL BURNING ODOR FROM GEAR HANDLE. PERFORMED GVI OF FWD & MAIN E/E BAY & FOUND NO OBVIOUS EVIDENCE OF FIRE OR BURNING.  NO ODOR IN EITHER E/E BAY. REMOVED UPPER EICAS DISPLAY, FOUND EQPT COOLING AIR WARMER THAN NORMAL. INSTALLED UPPER EICAS DISPLAY IAW AMM 31-41-01. SUSPECT EQPT COOLING ISSUE.   PERFORMED CONDITIONAL INSP OF ODOR IAW AMM 05-51-56-940-801-C1.  RAN PACKS FOR LONG DURATION & CYCLED FLT DECK TEMP MULTIPLE TIMES, NO ODOR NOTED.  PERFORMED INSP BEHIND BOTH NAV SCREENS FOR LOOSE DUCTING & WIRING.  NO FAULTS NOTED.  INSPD FWD & CENTER E/E FOR SIGNS OF ELECT BURNING ODOR, & LOOSE DUCTING, NO FAULTS NOTED. CYCLED EQUIPMENT COOLING SWITCH IN DIFFERENT MODES FOR SIGNS ODOR. NO ODOR NOTED. ALL C/B VERIFIED CLOSED PRIOR TO INSPECTION. DUE TO ODOR FORM 46-6020, FLIGHT CREW REPORT ODOR AND HIGH HEAT COMING FROM MCP. WILL REPLACE AS PRECAUTIONARY. EICAS DISPLAYS WERE ALSO INSPECTED FOR LOOSE DUCTING AND ANY BURNT CONNECTIONS. NO PERFORMED TESTS 4 & 30 PER AMM 22-00-02-742-006-001. NO FAULTS FOUND DURING TESTS. RETURNING A/C TO FULL CAT STATUS. OK TO CONTINUE.

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