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An MD80 crew experienced navigation display failure on takeoff. The system was partially restored, but failed again accompanied by an electrical burning smell.
| Attributes | |
| ACN | 636567 |
| Time | |
| Date | 200411 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zzz.artcc |
| State Reference | US |
| Altitude | msl single value : 31000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : vacating altitude cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 636567 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 636569 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other anomaly other anomaly other |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | controller : provided flight assist controller : issued new clearance flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency |
| Consequence | other Other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Lost both navigation directors during takeoff. Followed QRH procedure and restored captain's navigation display. First officer navigation information restored to compact mode on pfd. Navigation display remained inoperative. During cruise, a burning electrical smell was noted followed by a subsequent failure of the captain's navigation display. Navigation information restored to captain's pfd through compact mode. An emergency was declared and a diversion initiated. Crew oxygen used during descent. QRH procedure to remove the smoke resulted in abatement of the odor. Odor recurred during approach/landing. No other indications of fire were noted. After check of aircraft exterior by crash fire rescue equipment personnel, taxied to gate and deplaned normally. No injuries or any known violation of far or company procedure. Supplemental information from acn 636569: captain's navigation display failed again through descent. Crew oxygen depleted through use.
Original NASA ASRS Text
Title: AN MD80 CREW EXPERIENCED NAV DISPLAY FAILURE ON TKOF. THE SYS WAS PARTIALLY RESTORED, BUT FAILED AGAIN ACCOMPANIED BY AN ELECTRICAL BURNING SMELL.
Narrative: LOST BOTH NAV DIRECTORS DURING TKOF. FOLLOWED QRH PROC AND RESTORED CAPT'S NAV DISPLAY. FO NAV INFO RESTORED TO COMPACT MODE ON PFD. NAV DISPLAY REMAINED INOP. DURING CRUISE, A BURNING ELECTRICAL SMELL WAS NOTED FOLLOWED BY A SUBSEQUENT FAILURE OF THE CAPT'S NAV DISPLAY. NAV INFO RESTORED TO CAPT'S PFD THROUGH COMPACT MODE. AN EMER WAS DECLARED AND A DIVERSION INITIATED. CREW OXYGEN USED DURING DSCNT. QRH PROC TO REMOVE THE SMOKE RESULTED IN ABATEMENT OF THE ODOR. ODOR RECURRED DURING APCH/LNDG. NO OTHER INDICATIONS OF FIRE WERE NOTED. AFTER CHK OF ACFT EXTERIOR BY CFR PERSONNEL, TAXIED TO GATE AND DEPLANED NORMALLY. NO INJURIES OR ANY KNOWN VIOLATION OF FAR OR COMPANY PROC. SUPPLEMENTAL INFO FROM ACN 636569: CAPT'S NAV DISPLAY FAILED AGAIN THROUGH DSCNT. CREW OXYGEN DEPLETED THROUGH USE.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.