# SDR AALA202607153783

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 11, 2026
- Submitted: July 15, 2026
- Operation: Air carrier
- Aircraft: [N174US](https://openairdocs.org/aircraft/N174US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1492
- Aircraft time: 80,683 hours, 31,476 cycles
- Engine: Cfmint CFM565B3P
- Engine time: 55,148 hours, 35,743 cycles
- System (JASC): [7932 · Engine Oil Quantity](https://openairdocs.org/jasc/7932)
- Part: Transmitter
- Part number: 7411010
- Part serial: 2817
- Condition: Intermittent
- Location: Nr 1 Eng Oil Qty
- Part time: 6,803 hours, 2,973 cycles
- Stage of operation: CL
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202607153783

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO MIA DUE TO THE FLIGHT CREW REPORTING THAT DURING CLIMB AROUND 6.500FT #1 ENGINE OIL INDICATION WENT FROM 14QTS TO 1QTS. THE AIRCRAFT LANDED SAFELY AT MIA WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE OIL QUANTITY INDICATION IS FLUCTUATING WHEN THE HARNESS IS MOVED AT THE OIL QUANTITY TRANSMITTER AND REPLACED THE TRANSMITTER PER AMM 79-31-15. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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