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PIC of an LR35A performs an altitude overshoot which is noted by the first officer and the ZDC controller after the PIC had missed the amended clearance altitude change near sby, md.
| Attributes | |
| ACN | 541778 |
| Time | |
| Date | 200203 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sby.airport |
| State Reference | MD |
| Altitude | msl bound lower : 31000 msl bound upper : 32000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : charter |
| Make Model Name | Learjet 35 |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | other other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Person 1 | |
| Affiliation | company : charter |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 2500 flight time type : 70 |
| ASRS Report | 541778 |
| Person 2 | |
| Affiliation | company : charter |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 55 flight time total : 9750 flight time type : 3800 |
| ASRS Report | 542217 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : overshoot conflict : airborne less severe non adherence : clearance non adherence : company policies non adherence : required legal separation other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : became reoriented flight crew : returned to assigned altitude |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 20000 vertical : 1000 |
| Supplementary | |
| Problem Areas | Aircraft ATC Human Performance Environmental Factor Airspace Structure Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
The captain was flying from the left seat. We checked in with ZDC and were given clearance to climb to FL390. A min or so later we were given an amended clearance to climb to FL310. I read back the clearance and set the amended altitude into the altitude pre-selector. I then turned my attention to programming the GPS thinking the captain had heard the amended clearance. A min or so went by before I looked up to see the instruments. At the same time I realized what altitude we were at (climbing through 31700 ft), the captain asked what altitude we were cleared to and ZDC called and asked us our altitude. We ended up almost 1000 ft above our assigned altitude of 31000 ft before we started down again. Contributing factors to the event was 1) an amended clearance by ZDC during a climb. 2) my lack of crew coordination with the captain to make certain that he heard the amended clearance. 3) my inattention to the flight instruments during a critical phase of flight. 4) captain's failure to hear the amended clearance. This type of situation could have been prevented by better communication/crew coordination and focusing on the flight instruments during climbs or dscnts until level. Supplemental information from acn 542217: due to high workload and mindset of climb to cruise altitude (FL390) missed leveloff at FL310. First officer also missed callouts. Supplemental information from acn 542204: aircraft climbed through his assigned altitude of FL310. When I observed this I asked him to say altitude. He responded that he had climbed through his assigned altitude and was descending back to FL310.
Original NASA ASRS Text
Title: PIC OF AN LR35A PERFORMS AN ALT OVERSHOOT WHICH IS NOTED BY THE FO AND THE ZDC CTLR AFTER THE PIC HAD MISSED THE AMENDED CLRNC ALT CHANGE NEAR SBY, MD.
Narrative: THE CAPT WAS FLYING FROM THE L SEAT. WE CHKED IN WITH ZDC AND WERE GIVEN CLRNC TO CLB TO FL390. A MIN OR SO LATER WE WERE GIVEN AN AMENDED CLRNC TO CLB TO FL310. I READ BACK THE CLRNC AND SET THE AMENDED ALT INTO THE ALT PRE-SELECTOR. I THEN TURNED MY ATTN TO PROGRAMMING THE GPS THINKING THE CAPT HAD HEARD THE AMENDED CLRNC. A MIN OR SO WENT BY BEFORE I LOOKED UP TO SEE THE INSTS. AT THE SAME TIME I REALIZED WHAT ALT WE WERE AT (CLBING THROUGH 31700 FT), THE CAPT ASKED WHAT ALT WE WERE CLRED TO AND ZDC CALLED AND ASKED US OUR ALT. WE ENDED UP ALMOST 1000 FT ABOVE OUR ASSIGNED ALT OF 31000 FT BEFORE WE STARTED DOWN AGAIN. CONTRIBUTING FACTORS TO THE EVENT WAS 1) AN AMENDED CLRNC BY ZDC DURING A CLB. 2) MY LACK OF CREW COORD WITH THE CAPT TO MAKE CERTAIN THAT HE HEARD THE AMENDED CLRNC. 3) MY INATTENTION TO THE FLT INSTS DURING A CRITICAL PHASE OF FLT. 4) CAPT'S FAILURE TO HEAR THE AMENDED CLRNC. THIS TYPE OF SIT COULD HAVE BEEN PREVENTED BY BETTER COM/CREW COORD AND FOCUSING ON THE FLT INSTS DURING CLBS OR DSCNTS UNTIL LEVEL. SUPPLEMENTAL INFO FROM ACN 542217: DUE TO HIGH WORKLOAD AND MINDSET OF CLB TO CRUISE ALT (FL390) MISSED LEVELOFF AT FL310. FO ALSO MISSED CALLOUTS. SUPPLEMENTAL INFO FROM ACN 542204: ACFT CLBED THROUGH HIS ASSIGNED ALT OF FL310. WHEN I OBSERVED THIS I ASKED HIM TO SAY ALT. HE RESPONDED THAT HE HAD CLBED THROUGH HIS ASSIGNED ALT AND WAS DSNDING BACK TO FL310.
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.