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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Neither pilot recalls hearing a clearance or reading back a clearance to 11000 ft. The ARTCC never said they did clear the flight to 11000 ft. The controller only asked if they were cleared to 11000 ft and when told they were not, the controller cleared the flight to 11000 ft and turned the flight 15 degrees right.
| Attributes | |
| ACN | 336150 |
| Time | |
| Date | 199605 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : dqn |
| State Reference | OH |
| Altitude | msl bound lower : 11000 msl bound upper : 24000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid tower : ord |
| Operator | general aviation : corporate |
| Make Model Name | Beechjet 400 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 85 flight time total : 5800 flight time type : 390 |
| ASRS Report | 336150 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
We checked in on new frequency with ZID. To the best of our recall, the controller acknowledged and gave us a new altimeter setting, that's all. 2-3 mins later, ATC said 'did you get your descent to 11000 ft?' we said 'negative we didn't receive any descent.' ATC paused 1 min (nothing said). (Us) 'did you have a descent for us.' (ATC) 'descend and maintain 11000 ft.' we acknowledged. 2 mins later turn right 15 degrees. No mention was made of any conflicts or problems by ATC. I believe the controller thought he gave us a descent but didn't. Neither pilot recalls receiving or reading back any descent clearance. We heard no further mention of the confusion from ATC. I've been flying for 13 yrs with no altdevs. I'm 98 percent sure we received no clearance, but we were both tired, so I have some doubt.
Original NASA ASRS Text
Title: NEITHER PLT RECALLS HEARING A CLRNC OR READING BACK A CLRNC TO 11000 FT. THE ARTCC NEVER SAID THEY DID CLR THE FLT TO 11000 FT. THE CTLR ONLY ASKED IF THEY WERE CLRED TO 11000 FT AND WHEN TOLD THEY WERE NOT, THE CTLR CLRED THE FLT TO 11000 FT AND TURNED THE FLT 15 DEGS R.
Narrative: WE CHKED IN ON NEW FREQ WITH ZID. TO THE BEST OF OUR RECALL, THE CTLR ACKNOWLEDGED AND GAVE US A NEW ALTIMETER SETTING, THAT'S ALL. 2-3 MINS LATER, ATC SAID 'DID YOU GET YOUR DSCNT TO 11000 FT?' WE SAID 'NEGATIVE WE DIDN'T RECEIVE ANY DSCNT.' ATC PAUSED 1 MIN (NOTHING SAID). (US) 'DID YOU HAVE A DSCNT FOR US.' (ATC) 'DSND AND MAINTAIN 11000 FT.' WE ACKNOWLEDGED. 2 MINS LATER TURN R 15 DEGS. NO MENTION WAS MADE OF ANY CONFLICTS OR PROBS BY ATC. I BELIEVE THE CTLR THOUGHT HE GAVE US A DSCNT BUT DIDN'T. NEITHER PLT RECALLS RECEIVING OR READING BACK ANY DSCNT CLRNC. WE HEARD NO FURTHER MENTION OF THE CONFUSION FROM ATC. I'VE BEEN FLYING FOR 13 YRS WITH NO ALTDEVS. I'M 98 PERCENT SURE WE RECEIVED NO CLRNC, BUT WE WERE BOTH TIRED, SO I HAVE SOME DOUBT.
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.