 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew believed they received clearance to turn and begin climb, read back same and complied. ATC did not acknowledge readback and did not intend for aircraft to climb.
| Attributes | |
| ACN | 119676 |
| Time | |
| Date | 198908 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : phl |
| State Reference | PA |
| Altitude | msl bound lower : 10000 msl bound upper : 12200 |
| Environment | |
| Flight Conditions | IMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | departure other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 100 flight time total : 6000 flight time type : 100 |
| ASRS Report | 119676 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 150 flight time total : 8000 flight time type : 600 |
| ASRS Report | 120277 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation |
Narrative:
In cruise (after takeoff) was flying at 10,000' autoplt on. Controller cleared us to turn to 270 degree heading and climb to FL230. Captain (not flying) read back 'heading 270 degree FL230' and I initiated climb after arming heading select and altitude arm. Just below 12,000' controller asked why we were not at 10,000. Captain said he (the controller) had cleared us to FL230. Controller told us to immediately descend back to 10,000'. I immediately descended to 10,000' at approximately 2500-3000' descent rate. No further discussion or directions from controller except a frequency change. There is absolutely no doubt in my mind the captain read back 'turn to heading 270 degree climb to FL230' with our call sign.
Original NASA ASRS Text
Title: FLT CREW BELIEVED THEY RECEIVED CLRNC TO TURN AND BEGIN CLIMB, READ BACK SAME AND COMPLIED. ATC DID NOT ACKNOWLEDGE READBACK AND DID NOT INTEND FOR ACFT TO CLIMB.
Narrative: IN CRUISE (AFTER TKOF) WAS FLYING AT 10,000' AUTOPLT ON. CTLR CLRED US TO TURN TO 270 DEG HDG AND CLIMB TO FL230. CAPT (NOT FLYING) READ BACK 'HDG 270 DEG FL230' AND I INITIATED CLIMB AFTER ARMING HDG SELECT AND ALT ARM. JUST BELOW 12,000' CTLR ASKED WHY WE WERE NOT AT 10,000. CAPT SAID HE (THE CTLR) HAD CLRED US TO FL230. CTLR TOLD US TO IMMEDIATELY DSND BACK TO 10,000'. I IMMEDIATELY DESCENDED TO 10,000' AT APPROX 2500-3000' DSCNT RATE. NO FURTHER DISCUSSION OR DIRECTIONS FROM CTLR EXCEPT A FREQ CHANGE. THERE IS ABSOLUTELY NO DOUBT IN MY MIND THE CAPT READ BACK 'TURN TO HDG 270 DEG CLIMB TO FL230' WITH OUR CALL SIGN.
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.