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An air carrier flight crew experienced a nose air ground switch failure; declared an emergency; and returned to department airport.
| Attributes | |
| ACN | 753266 |
| Time | |
| Date | 200709 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 2300 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 753266 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Upon initial climb out of ZZZ; we received a status message 'nose a/G system.' upon flap retraction to 0 degrees; takeoff confign warning and flap warning illuminated and sounded. We informed ATC of situation; and I leveled aircraft at 4000 ft; reduced speed to 220 KTS. After assessing the situation using the QRH; I elected to recycle the landing gear; with no results. I ask the first officer to select flaps 1 degree; the confign/warning and flap warning extinguished. Asked ATC for delay vectors to work on the problem. First officer contacted maintenance through dispatch. After working with maintenance I elected to declare an emergency with ATC and asked for arf to stand by. Informed flight attendants and passenger of situation. We returned to ZZZ for overweight landing. Touchdown weight was 281000 pounds; 143 KTS; 200 FPM. After landing; arf checked landing gear. All clear; taxied to gate.
Original NASA ASRS Text
Title: AN ACR FLT CREW EXPERIENCED A NOSE AIR GROUND SWITCH FAILURE; DECLARED AN EMERGENCY; AND RETURNED TO DEPT ARPT.
Narrative: UPON INITIAL CLB OUT OF ZZZ; WE RECEIVED A STATUS MESSAGE 'NOSE A/G SYS.' UPON FLAP RETRACTION TO 0 DEGS; TKOF CONFIGN WARNING AND FLAP WARNING ILLUMINATED AND SOUNDED. WE INFORMED ATC OF SITUATION; AND I LEVELED ACFT AT 4000 FT; REDUCED SPD TO 220 KTS. AFTER ASSESSING THE SITUATION USING THE QRH; I ELECTED TO RECYCLE THE LNDG GEAR; WITH NO RESULTS. I ASK THE FO TO SELECT FLAPS 1 DEG; THE CONFIGN/WARNING AND FLAP WARNING EXTINGUISHED. ASKED ATC FOR DELAY VECTORS TO WORK ON THE PROB. FO CONTACTED MAINT THROUGH DISPATCH. AFTER WORKING WITH MAINT I ELECTED TO DECLARE AN EMER WITH ATC AND ASKED FOR ARF TO STAND BY. INFORMED FLT ATTENDANTS AND PAX OF SITUATION. WE RETURNED TO ZZZ FOR OVERWT LNDG. TOUCHDOWN WT WAS 281000 LBS; 143 KTS; 200 FPM. AFTER LNDG; ARF CHKED LNDG GEAR. ALL CLR; TAXIED TO GATE.
Data retrieved from NASA's ASRS site as of January 2009 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.