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|
Attributes | |
ACN | 220754 |
Time | |
Date | 199209 |
Day | Fri |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | atc facility : zan |
State Reference | AK |
Altitude | msl bound lower : 33500 msl bound upper : 35000 |
Environment | |
Flight Conditions | IMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zan tower : ewr |
Operator | common carrier : air carrier |
Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
Flight Phase | descent other |
Flight Plan | IFR |
Aircraft 2 | |
Operator | other |
Make Model Name | Fighter |
Flight Phase | climbout : intermediate altitude |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
ASRS Report | 220754 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : atp |
Events | |
Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
Independent Detector | atc equipment other atc equipment : unspecified other controllera |
Resolutory Action | controller : issued new clearance flight crew : took evasive action |
Consequence | Other |
Miss Distance | horizontal : 6000 vertical : 0 |
Supplementary | |
Primary Problem | ATC Human Performance |
Air Traffic Incident | Operational Error |
Narrative:
We were advised that we would have to remain at FL350 until approximately 90-95 NM from fai on J-502, or go down to FL190 approximately 200 NM from fai. We opted to remain at FL350. Approximately 120 NM from fai, we received a clearance, at pilot's discretion, to FL330. Approximately 105 NM from fai, we started our descent to FL330. Descending through FL335, ATC said, 'air carrier X immediate right turn to 360 and climb to FL350.' during the turn and climb, I saw 2 tactical aircraft (fgts) to our left approximately 1 plus NM away, what appeared to be co-altitude, appearing to be joining up in a right turn heading through south. I called the traffic in sight, continuing the climb and turn. ATC then told us we were cleared direct to fai VOR from the 360 degree heading. Shortly thereafter, we were cleared to 17000. Descending through approximately FL280, ATC asked for 'maximum rate of descent through FL210.' this put us 'short' of a 3-1 descent profile, so I reduced descent rate (to approximately 2000 FPM/280 KTS). Prior to 17000, received clearance to 10000. Passing 13000, switched to approach control and cleared to 7000. Approximately 32 NM from fai VOR, passing 9000, cleared to 4500, and we were advised that he'd 'call our right turn' for what looked like the downwind heading for landing on runway 19R at fai. Descending through 5800, ATC said, (ATC) 'I need you at 6000. You were cleared to 10000, but 6000 will work now.' (flight) 'negative, we were cleared to 4500 and you were to call our right turn.' (ATC) 'if I said that, I didn't mean to. Now I need you to climb to 7000.' switching to approach control we were vectored approximately 16 NM north of fai. On an intercept heading of 130 degrees, we were cleared to 3700. Prior to localizer intercept, the ground proximity warning (GPWS) went off. To silence the warning, I had to climb through 4500. We advised approach control of what happened, as we recommenced our descent, just as the localizer had case break. Remainder of flight normal.
Original NASA ASRS Text
Title: ACR PLT HAS 2 INCIDENTS, 1 AT ALT WHEN A FLT OF FGTS COME IN CLOSE PROX, AND A WRONG ALT ON FINAL APCH.
Narrative: WE WERE ADVISED THAT WE WOULD HAVE TO REMAIN AT FL350 UNTIL APPROX 90-95 NM FROM FAI ON J-502, OR GO DOWN TO FL190 APPROX 200 NM FROM FAI. WE OPTED TO REMAIN AT FL350. APPROX 120 NM FROM FAI, WE RECEIVED A CLRNC, AT PLT'S DISCRETION, TO FL330. APPROX 105 NM FROM FAI, WE STARTED OUR DSCNT TO FL330. DSNDING THROUGH FL335, ATC SAID, 'ACR X IMMEDIATE R TURN TO 360 AND CLB TO FL350.' DURING THE TURN AND CLB, I SAW 2 TACTICAL ACFT (FGTS) TO OUR L APPROX 1 PLUS NM AWAY, WHAT APPEARED TO BE CO-ALT, APPEARING TO BE JOINING UP IN A R TURN HDG THROUGH S. I CALLED THE TFC IN SIGHT, CONTINUING THE CLB AND TURN. ATC THEN TOLD US WE WERE CLRED DIRECT TO FAI VOR FROM THE 360 DEG HDG. SHORTLY THEREAFTER, WE WERE CLRED TO 17000. DSNDING THROUGH APPROX FL280, ATC ASKED FOR 'MAX RATE OF DSCNT THROUGH FL210.' THIS PUT US 'SHORT' OF A 3-1 DSCNT PROFILE, SO I REDUCED DSCNT RATE (TO APPROX 2000 FPM/280 KTS). PRIOR TO 17000, RECEIVED CLRNC TO 10000. PASSING 13000, SWITCHED TO APCH CTL AND CLRED TO 7000. APPROX 32 NM FROM FAI VOR, PASSING 9000, CLRED TO 4500, AND WE WERE ADVISED THAT HE'D 'CALL OUR R TURN' FOR WHAT LOOKED LIKE THE DOWNWIND HDG FOR LNDG ON RWY 19R AT FAI. DSNDING THROUGH 5800, ATC SAID, (ATC) 'I NEED YOU AT 6000. YOU WERE CLRED TO 10000, BUT 6000 WILL WORK NOW.' (FLT) 'NEGATIVE, WE WERE CLRED TO 4500 AND YOU WERE TO CALL OUR R TURN.' (ATC) 'IF I SAID THAT, I DIDN'T MEAN TO. NOW I NEED YOU TO CLB TO 7000.' SWITCHING TO APCH CTL WE WERE VECTORED APPROX 16 NM N OF FAI. ON AN INTERCEPT HDG OF 130 DEGS, WE WERE CLRED TO 3700. PRIOR TO LOC INTERCEPT, THE GND PROX WARNING (GPWS) WENT OFF. TO SILENCE THE WARNING, I HAD TO CLB THROUGH 4500. WE ADVISED APCH CTL OF WHAT HAPPENED, AS WE RECOMMENCED OUR DSCNT, JUST AS THE LOC HAD CASE BREAK. REMAINDER OF FLT NORMAL.
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.