ACR LGT HAD TO ABANDON 2 APCHS IN THE ANC AREA BECAUSE OF HIGH WINDS AND WIND SHEAR. CLAIMS HEADS UP DISPLAY WAS VERY VALUABLE IN MAKING THE DECISION TO GAR.

Date: 1991-12 · Aircraft: Commercial Fixed Wing · Phase: taxi

Synopsis

ACR LGT HAD TO ABANDON 2 APCHS IN THE ANC AREA BECAUSE OF HIGH WINDS AND WIND SHEAR. CLAIMS HEADS UP DISPLAY WAS VERY VALUABLE IN MAKING THE DECISION TO GAR.

Narrative

APCH CTL ADVISED OF TURB IN ANC AREA. APCH INDICATED VECTORS FOR RWY 14 (ATIS WINDS 270 DEGS 12 G 22). TAILWINDS FOR RWY 14 CAUSED US TO ASK FOR A VISUAL APCH RWY 32. WE WERE CLRED BY THE TWR FOR VISUAL APCH TO RWY 32. DURING BASE TO FINAL TURN; ACFT ENCOUNTERED STRONG WINDS OF 130 DEGS/60-80 KTS HEADS UP DISPLAY WIND DATA. WE ABORTED LNDG APCH TO RWY 32; REQUESTED VISUAL APCH TO 24 (DEP RWY) AND ON BASE TURN; ACFT ENCOUNTERED SEVERE TURB AND WIND SHEAR. ON THE ABORTED APCH AND MISSED APCH; OUR FLT PATH TOOK US DIRECTLY OVER THE ARPT HDG W. DUE TO TURB AND WIND SHEAR CONDITIONS; ACFT WAS VERY DIFFICULT TO MAINTAIN TWR CLRNC ALT AND HDGS; AND IAS FLUCTUATED +/- 30 KTS. WE MAINTAINED WITHIN VFR CONDITIONS. REMAINING FUEL PREVENTED DIVERT TO FAIRBANKS. TURB AREAS AND STRONG WINDS AT TFC PATTERN ALTS WERE DYNAMIC AND EVER CHANGING; AND DIMINISHED SOMEWHAT N AND W OF THE ARPT. WE ELECTED TO APCH THE ARPT FROM THAT QUADRANT; STATED OUR INTENTIONS TO LAND RWY 14 FROM A VISUAL APCH AND RECEIVED CLRNC FROM THE TWR TO DO SO. UPON LNDG WE NOTICED OTHER ACFT TAKING OFF AND LNDG SO WE GAVE A PIREP OF THE MAGNITUDE OF ENCOUNTERED WINDS AND TURB TO GND CTL. WE WERE NOT AWARE OF THE SEVERITY OF THE TURB UNTIL ENCOUNTERED IN THE ATA. FLT PATH DATA AND ASSOCIATED WINDS AT ALT (DIFFERENT THAN RPTED SURFACE WINDS) PRESENTED TO THE CAPT VIA THE HEADS UP DISPLAY ENHANCED OUR DECISION PROCESS TO ABORT THE FIRST 2 LNDG ATTEMPTS PRIOR TO A DANGEROUS SITUATION DEVELOPING LIKE PREVIOUS WIND SHEAR ACCIDENTS.

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.