# SDR FDEA201302190366 - Type: Service difficulty report (as reported; unverified) - Difficulty date: February 19, 2013 - Submitted: March 4, 2013 - Operation: Air carrier - Aircraft: [N319FE](https://openairdocs.org/aircraft/N319FE), 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: 47820 - Aircraft time: 90,321 hours, 25,310 cycles - System (JASC): [3620 ยท Pneumatic Indicating System](https://openairdocs.org/jasc/3620) - Part: Pressure Switch - Part number: 831651 - Part serial: 2797 - Condition: Failed - Location: Bleed Air - 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/FDEA201302190366 ## Discrepancy AIR SYS 3 OFF ALERT RAN QRH THEN MANIFOLD FAIL ALERT DIVERT KMCI. PERFORMED SATISFACTORY PNEUMATIC SYSTEM PRESSURE DECAY TEST WITH APU REF AMM 36-00-01-5. ON MCDU AIU 1 SHOWS CURRENT FAULT 314212 "NO LOOP 3 INPUT RCVD DURING MANF PREFLT TST-P". ON FRONT OF MANIFOLD FAILURE DETECTION CONTROLLER, RT WING PRESSURE SWITCH FAULT BALL IS DISPLAYED. REF FIM. BEFORE CHANGING SWITCH RAN PNEUMATIC SYSTEM 3 AND PERFORMED A PRESSURE DECAY CHECK PER AMM 36-00-01-5. ALL CHECKS PASSED. CHECKED FOR LEAKS ON LEADING EDGE AND FOUND NO LEAKS INDICATED. CHECKED MANIFOLD FAILURE CONTROLLER AND FOUND RT WING PRESSURE SWITCH FAULT BALL ILLUMINATED. CLEARED FAULT. REMOVED AND REPLACED MANIFOLD FAILURE DETECTION PRESSURE SWITCH S1-650 PER AMM 36-23-03-4. PERFORMED MANIFOLD FAILURE ADJUSTMENT TESTED PER AMM 36-23-01-5-1 AND NO FAULTS. SUPPLIED PRESSURE TO NR 3 PNEU SYSTEM AND TURNED ON WING ANTI-ICE. NO PRESSURE SWITCH FAULT ON CONTROLLER. --- 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.