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Flight crew of air carrier large transport aircraft deviated from assigned altitude in response to a TCASII RA resulting in learning that their assigned altitude was different from that they had recorded and climbing to.
| Attributes | |
| ACN | 235029 |
| Time | |
| Date | 199302 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sju |
| State Reference | PR |
| Altitude | msl bound lower : 28000 msl bound upper : 29500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : tjzs tower : pns |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 40 flight time total : 13000 flight time type : 1100 |
| ASRS Report | 235029 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 12000 vertical : 1000 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While climbing through FL290, first officer (flying) noted traffic displayed on TCASII (30 degree radial, 15 mi, 1200 ft above). First officer informed captain that he (first officer) had better level momentarily at FL300 because traffic (visually sighted) was moving right to left and would be at same altitude if climb continued. Captain called out traffic to ZSU and controller said we were only cleared to FL280. All crew members noted altitude alert set at FL310. Clrncs previously given: sju departure (128.65) direct elmnc passing 11000 ft from a 280 degree heading departing stx. Sju (low) climb to FL310. No clearance to only FL280 had been given. TCASII assist.
Original NASA ASRS Text
Title: FLC OF ACR LGT ACFT DEVIATED FROM ASSIGNED ALT IN RESPONSE TO A TCASII RA RESULTING IN LEARNING THAT THEIR ASSIGNED ALT WAS DIFFERENT FROM THAT THEY HAD RECORDED AND CLBING TO.
Narrative: WHILE CLBING THROUGH FL290, FO (FLYING) NOTED TFC DISPLAYED ON TCASII (30 DEG RADIAL, 15 MI, 1200 FT ABOVE). FO INFORMED CAPT THAT HE (FO) HAD BETTER LEVEL MOMENTARILY AT FL300 BECAUSE TFC (VISUALLY SIGHTED) WAS MOVING R TO L AND WOULD BE AT SAME ALT IF CLB CONTINUED. CAPT CALLED OUT TFC TO ZSU AND CTLR SAID WE WERE ONLY CLRED TO FL280. ALL CREW MEMBERS NOTED ALT ALERT SET AT FL310. CLRNCS PREVIOUSLY GIVEN: SJU DEP (128.65) DIRECT ELMNC PASSING 11000 FT FROM A 280 DEG HDG DEPARTING STX. SJU (LOW) CLB TO FL310. NO CLRNC TO ONLY FL280 HAD BEEN GIVEN. TCASII ASSIST.
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.