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Potential conflict initiated when the PIC of a sabreliner fails to issue an emergency declaration prior to descending when losing cabin pressure 80 mi east of fwa, in.
| Attributes | |
| ACN | 547865 |
| Time | |
| Date | 200205 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : fwa.vortac |
| State Reference | IN |
| Altitude | msl bound lower : 26000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc tower : gso.tower |
| Operator | common carrier : charter |
| Make Model Name | Sabreliner 80A |
| Operating Under FAR Part | Part 135 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : charter |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| ASRS Report | 547865 |
| Person 2 | |
| Affiliation | company : charter |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : far non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued advisory controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew other other |
| Miss Distance | horizontal : 24000 vertical : 800 |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We experienced a pressurization problem at approximately FL310. After donning oxygen masks, the captain started a descent (we were climbing to FL350) without ATC approval. I attempted and finally got ATC approval to descend to FL250. We were already at FL260 by this time. We asked for and got lower as the captain continued the descent to 15000 ft MSL. The captain chose not to declare an emergency during this descent. The corrective action, I feel, was to declare an emergency as the situation warranted this reaction. ATC did call traffic at 12 O'clock position and less than 5 mi, less than 1000 ft separation during our descent. Had the captain declared an emergency, ATC could have more effectively aided us with our descent and traffic separation.
Original NASA ASRS Text
Title: POTENTIAL CONFLICT INITIATED WHEN THE PIC OF A SABRELINER FAILS TO ISSUE AN EMER DECLARATION PRIOR TO DSNDING WHEN LOSING CABIN PRESSURE 80 MI E OF FWA, IN.
Narrative: WE EXPERIENCED A PRESSURIZATION PROB AT APPROX FL310. AFTER DONNING OXYGEN MASKS, THE CAPT STARTED A DSCNT (WE WERE CLBING TO FL350) WITHOUT ATC APPROVAL. I ATTEMPTED AND FINALLY GOT ATC APPROVAL TO DSND TO FL250. WE WERE ALREADY AT FL260 BY THIS TIME. WE ASKED FOR AND GOT LOWER AS THE CAPT CONTINUED THE DSCNT TO 15000 FT MSL. THE CAPT CHOSE NOT TO DECLARE AN EMER DURING THIS DSCNT. THE CORRECTIVE ACTION, I FEEL, WAS TO DECLARE AN EMER AS THE SIT WARRANTED THIS REACTION. ATC DID CALL TFC AT 12 O'CLOCK POS AND LESS THAN 5 MI, LESS THAN 1000 FT SEPARATION DURING OUR DSCNT. HAD THE CAPT DECLARED AN EMER, ATC COULD HAVE MORE EFFECTIVELY AIDED US WITH OUR DSCNT AND TFC SEPARATION.
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.