# SDR YENA2025061600612

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 13, 2025
- Submitted: June 16, 2025
- Operation: Air carrier
- Aircraft: [N3142J](https://openairdocs.org/aircraft/N3142J), registered now
- Make and model: Airbus BD-500-1A11
- Registry model: [Airbus BD-500-1A11](https://openairdocs.org/model/airbus-canada-lp-bd-500-1a11) (OpenAirDocs)
- Aircraft serial: 55251
- Aircraft time: 4,909 hours, 2,129 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: Precooler
- Condition: Faulted
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025061600612

## Discrepancy

FLT#21, BOS-PBI. (AIRCRAFT PERFORMED AN AIR TURN BACK TO BOS). '" R BLEED OVHT" CAUTION MESSAGE O N CLIMBOUT. SEVERAL MINUTES AFTER TAKE OFF. SYNOPTIC PAGE SHOWS YELLOW BLEED DUCTS ON THE FLIGHT SIDE FROM X BLEED VALVE TO PACK VALVE. RAN ECL MESSAGE STAYED ON . NO ICING CONDITIONS MESSAGE CLEARED DURING IDLE DESCENT LATER IN LIGHT; PLEASE REF ITEM 2 BELOW FOR EXISTING MEL RECLASSIFYING CAUTION ( MDDR 585205 ((RESOLVED ON W/O: 1417749 TASKCARD: NR-00005 )   ITEM CLEARED BY REMOVED AND REPLACED OF FAN AIR VALVE & PRECOOLER SEE DEFECT 4202632-1 & 2, 420239-2 FOR OPS & R&R INFO THIS CLEARS MDDR A/C OK FOR SERVICE)) WHICH ADDRESSED THIS WRITE UP.'

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