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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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While on a pilot's discretion clearance, an air carrier DC10 flight crew failed to initiate a climb from FL290 to meet a crossing restr for moatt, at FL310. The PNF had left the cockpit to attend to physiological needs and discovered the PF's failure to climb to FL310 when he returned. The moncton ARTCC radar controller intervened when the flight was over moatt.
| Attributes | |
| ACN | 334590 |
| Time | |
| Date | 199604 |
| Day | Sun |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : yvp |
| State Reference | FO |
| Altitude | msl bound lower : 29000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : czqm |
| Operator | common carrier : air carrier |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : atlantic enroute : other oceanic enroute airway : czqm enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 252 flight time total : 12386 flight time type : 6936 |
| ASRS Report | 334590 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Around 129-140 NM southwest of moatt on a northeast heading to the fix, moncton center cleared our flight to climb to FL310 at pilot's discretion, but to cross moatt at FL310. I was the PNF while the captain was the PF. The captain, hearing the moatt crossing restr, put FL310 in the DC10's flight guidance system mode annunciator. Soon after this event, but prior to moatt, I had to go to the lavatory. Upon leaving the flight deck, I found the restrooms adjacent to the cockpit in use. I had to wait a few mins before I could enter and use the bathroom. Upon returning to my flight position, I started to fill out the paperwork for the moatt fix report. We were about 16 mi from moatt at this time (still southwest of the fix on a northeast heading). At this time I also noticed we were still at FL290 and had not climbed to FL310, our moatt crossing restr. While we were over moatt, moncton center called to remind us we had not climbed, and directed us to immediately climb to FL310. On hindsight, I should have reminded the captain of the crossing restr when I left the flight deck, and I should have immediately looked at the altimeter, as a double- check, upon my return. I realized our error 1-2 mins after my return.
Original NASA ASRS Text
Title: WHILE ON A PLT'S DISCRETION CLRNC, AN ACR DC10 FLC FAILED TO INITIATE A CLB FROM FL290 TO MEET A XING RESTR FOR MOATT, AT FL310. THE PNF HAD LEFT THE COCKPIT TO ATTEND TO PHYSIOLOGICAL NEEDS AND DISCOVERED THE PF'S FAILURE TO CLB TO FL310 WHEN HE RETURNED. THE MONCTON ARTCC RADAR CTLR INTERVENED WHEN THE FLT WAS OVER MOATT.
Narrative: AROUND 129-140 NM SW OF MOATT ON A NE HDG TO THE FIX, MONCTON CTR CLRED OUR FLT TO CLB TO FL310 AT PLT'S DISCRETION, BUT TO CROSS MOATT AT FL310. I WAS THE PNF WHILE THE CAPT WAS THE PF. THE CAPT, HEARING THE MOATT XING RESTR, PUT FL310 IN THE DC10'S FLT GUIDANCE SYS MODE ANNUNCIATOR. SOON AFTER THIS EVENT, BUT PRIOR TO MOATT, I HAD TO GO TO THE LAVATORY. UPON LEAVING THE FLT DECK, I FOUND THE RESTROOMS ADJACENT TO THE COCKPIT IN USE. I HAD TO WAIT A FEW MINS BEFORE I COULD ENTER AND USE THE BATHROOM. UPON RETURNING TO MY FLT POS, I STARTED TO FILL OUT THE PAPERWORK FOR THE MOATT FIX RPT. WE WERE ABOUT 16 MI FROM MOATT AT THIS TIME (STILL SW OF THE FIX ON A NE HDG). AT THIS TIME I ALSO NOTICED WE WERE STILL AT FL290 AND HAD NOT CLBED TO FL310, OUR MOATT XING RESTR. WHILE WE WERE OVER MOATT, MONCTON CTR CALLED TO REMIND US WE HAD NOT CLBED, AND DIRECTED US TO IMMEDIATELY CLB TO FL310. ON HINDSIGHT, I SHOULD HAVE REMINDED THE CAPT OF THE XING RESTR WHEN I LEFT THE FLT DECK, AND I SHOULD HAVE IMMEDIATELY LOOKED AT THE ALTIMETER, AS A DOUBLE- CHK, UPON MY RETURN. I REALIZED OUR ERROR 1-2 MINS AFTER MY RETURN.
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.