# SDR DALA2026060503403

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2026
- Submitted: June 6, 2026
- Operation: Air carrier
- Aircraft: [N689DL](https://openairdocs.org/aircraft/N689DL), registered now
- Make and model: Boeing 757232
- Aircraft serial: 27172
- Aircraft time: 80,047 hours, 34,859 cycles
- Engine: Pwa PW2037
- Engine time: 81,268 hours, 29,215 cycles
- System (JASC): [7921 · Engine Oil Cooler](https://openairdocs.org/jasc/7921)
- Part: Oil Cooler
- Condition: Odor
- Location: Zone
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026060503403

## Discrepancy

CREW REPORTED EXHAUST ODOR IN AFT CABIN ON TAKEOFF AND TOP OF DESCENT. EMERGENCY DECLARED DURING APPROACH. ROAD TRIP. REPLACED AIR/OIL COOLER. (LP 8075720, 1628492 - AIRCRAFT WAS GROUNDED)

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