# SDR FDEA202101010001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 2021
- Submitted: January 4, 2021
- Operation: Air carrier
- Aircraft: [N316FE](https://openairdocs.org/aircraft/N316FE), registered now
- Make and model: Doug MD-10-30F
- Registry model: [Doug MD-10-30F](https://openairdocs.org/model/mcdonnell-douglas-md-10-30f) (OpenAirDocs)
- Aircraft serial: 48314
- Aircraft time: 64,246 hours, 23,790 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Tee Fitting
- Part number: AJK7022509
- Condition: Cracked
- Location: Hyd System
- Stage of operation: DE
- How discovered: O
- Nature of condition: K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202101010001

## Discrepancy

"HYD 3 ELEV OFF" ALERT CAME ON.  WE NOTICED HYD 3 QUANTITY SLOWLY DECLINE.  WE LATER HAD HYD QUANTITY  LOW.  WE EXTENDED THE LANDING GEAR NORMALLY.  WE THEN  HAD HYD 3 FAIL.  AFTER BLOCK IN FOUND HYDRAULIC QTY NR 3 SYSTEM AT 3.5 GAL.  FOUND HYD LINE CRACKED AT TEE FITTING  MPN.  AJK7022-509, UPPER HYD.  LINE AT HORIZONTAL STAB UPPER PRIMARY CONTROL VALVE.  REMOVED AND REPLACED BROKEN HYD LINE, PER 20-10-01-2.  SERVICED NR 3 HYD SYSTEM, PER MM 12-13-02-3.  LEAK AND OPERATIONS CHECKS NORMAL.  OK TO CONTINUE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.