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A B757-200 flight crew flies through the localizer of ILS runway 28R with a mistuned ILS frequency on their navigation radio, 8 mi east of sfo, ca.
| Attributes | |
| ACN | 488240 |
| Time | |
| Date | 200010 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : o90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 28r other |
| Flight Phase | descent : vacating altitude |
| Route In Use | approach : instrument precision arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 22000 flight time type : 2800 |
| ASRS Report | 488240 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| Events | |
| Anomaly | non adherence : company policies non adherence : published procedure non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : hsi other flight crewa other flight crewb |
| Resolutory Action | flight crew : returned to intended or assigned course other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Cleared for ILS approach to intercept localizer on heading. Had run preliminary landing checklist which included approach briefing. Confirmed all required approach items including frequency 111.7. Fortunately, with horizontal direction situation indicator display, saw that we were passing through centerline of runway 28R (111.7) with localizer still indicating left. Saw that the frequency was on 111.3 instead of 111.7. The display was dirty and the numbers not clear on digital readout. We both saw 111.7 or thought so on checklist. With all electronics available we still need to tune and identify. WX was good and we stayed within limits but could have been a problem.
Original NASA ASRS Text
Title: A B757-200 FLC FLIES THROUGH THE LOC OF ILS RWY 28R WITH A MISTUNED ILS FREQ ON THEIR NAV RADIO, 8 MI E OF SFO, CA.
Narrative: CLRED FOR ILS APCH TO INTERCEPT LOC ON HDG. HAD RUN PRELIMINARY LNDG CHKLIST WHICH INCLUDED APCH BRIEFING. CONFIRMED ALL REQUIRED APCH ITEMS INCLUDING FREQ 111.7. FORTUNATELY, WITH HORIZ DIRECTION SIT INDICATOR DISPLAY, SAW THAT WE WERE PASSING THROUGH CTRLINE OF RWY 28R (111.7) WITH LOC STILL INDICATING L. SAW THAT THE FREQ WAS ON 111.3 INSTEAD OF 111.7. THE DISPLAY WAS DIRTY AND THE NUMBERS NOT CLR ON DIGITAL READOUT. WE BOTH SAW 111.7 OR THOUGHT SO ON CHKLIST. WITH ALL ELECTRONICS AVAILABLE WE STILL NEED TO TUNE AND IDENT. WX WAS GOOD AND WE STAYED WITHIN LIMITS BUT COULD HAVE BEEN A PROB.
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.