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Fgt misinterp altitude assignment, climbed through altitude and created less than standard separation with another aircraft.
| Attributes | |
| ACN | 83159 |
| Time | |
| Date | 198803 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : abq |
| State Reference | NM |
| Altitude | msl bound lower : 30700 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab |
| Operator | other |
| Make Model Name | Fighter |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : military |
| Function | flight crew : single pilot |
| Qualification | pilot : military |
| Experience | flight time last 90 days : 300 flight time total : 1500 flight time type : 45 |
| ASRS Report | 83159 |
| Person 2 | |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : clearance non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 18000 vertical : 1700 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I was flying on a single ship flight from dsm to fsd. The clearance was direct abq with an intermediate level off at FL250. I was subsequently cleared to FL330 (this is the clearance that is in question). As I was passing FL310 abq center asked for my altitude. I reported passing FL310 for FL330. They responded that I had only been cleared to FL260 and told me to level at FL310. I pushed over to FL310 and leveled there. Center then called me 300' low and told me level at FL310. I reported level at FL310 as was indicated on my altimeter, and then climbed 100' to avoid any complications. Approximately 10 mins later center called and gave me a telephone number to call upon my landing to discuss a possible violation. When I called the controller informed me that I was being violated for being below FL310 and breaking minimum altitude sep with traffic at FL290. Possible cause: altimeter lag from rapid descent back to FL310.
Original NASA ASRS Text
Title: FGT MISINTERP ALT ASSIGNMENT, CLIMBED THROUGH ALT AND CREATED LESS THAN STANDARD SEPARATION WITH ANOTHER ACFT.
Narrative: I WAS FLYING ON A SINGLE SHIP FLT FROM DSM TO FSD. THE CLRNC WAS DIRECT ABQ WITH AN INTERMEDIATE LEVEL OFF AT FL250. I WAS SUBSEQUENTLY CLRED TO FL330 (THIS IS THE CLRNC THAT IS IN QUESTION). AS I WAS PASSING FL310 ABQ CENTER ASKED FOR MY ALT. I RPTED PASSING FL310 FOR FL330. THEY RESPONDED THAT I HAD ONLY BEEN CLRED TO FL260 AND TOLD ME TO LEVEL AT FL310. I PUSHED OVER TO FL310 AND LEVELED THERE. CENTER THEN CALLED ME 300' LOW AND TOLD ME LEVEL AT FL310. I RPTED LEVEL AT FL310 AS WAS INDICATED ON MY ALTIMETER, AND THEN CLBED 100' TO AVOID ANY COMPLICATIONS. APPROX 10 MINS LATER CENTER CALLED AND GAVE ME A TELEPHONE NUMBER TO CALL UPON MY LNDG TO DISCUSS A POSSIBLE VIOLATION. WHEN I CALLED THE CTLR INFORMED ME THAT I WAS BEING VIOLATED FOR BEING BELOW FL310 AND BREAKING MINIMUM ALT SEP WITH TFC AT FL290. POSSIBLE CAUSE: ALTIMETER LAG FROM RAPID DSCNT BACK TO FL310.
Data retrieved from NASA's ASRS site as of August 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.