Service difficulty report · Transmitter · Airbus A321211

Difficulty date
July 11, 2026
Submitted
July 15, 2026
Operation
Air carrier
Aircraft
N174US
Make and model
Airbus A321211
Aircraft serial
1492
Aircraft time
80,683 hours, 31,476 cycles
Engine
Cfmint CFM565B3P
Engine time
55,148 hours, 35,743 cycles
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

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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