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While on approach into an airport - airport with parallel approach procedures, a flight crew misinterpreted the approach clearance, and intercepted the wrong localizer. Controller issued new clearance.
| Attributes | |
| ACN | 301841 |
| Time | |
| Date | 199504 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : iad |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : iad |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 32 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 210 flight time total : 3500 flight time type : 1800 |
| ASRS Report | 301841 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Controller assigned heading of 340 degree to intercept runway 01 ILS localizer. Standard clearance is to intercept runway 01 right localizer. When we read back 'intercept runway 01R localizer' we received no acknowledgement. Controller then asked which localizer we had joined. When we told him the runway 01R localizer at iad he told us he assigned runway 01L localizer. Instructed us to continue approach. Landed uneventfully. Classic readback - hearback error.
Original NASA ASRS Text
Title: WHILE ON APCH INTO AN ARPT - ARPT WITH PARALLEL APCH PROCS, A FLC MISINTERPRETED THE APCH CLRNC, AND INTERCEPTED THE WRONG LOC. CTLR ISSUED NEW CLRNC.
Narrative: CTLR ASSIGNED HDG OF 340 DEG TO INTERCEPT RWY 01 ILS LOC. STANDARD CLRNC IS TO INTERCEPT RWY 01 R LOC. WHEN WE READ BACK 'INTERCEPT RWY 01R LOC' WE RECEIVED NO ACKNOWLEDGEMENT. CTLR THEN ASKED WHICH LOC WE HAD JOINED. WHEN WE TOLD HIM THE RWY 01R LOC AT IAD HE TOLD US HE ASSIGNED RWY 01L LOC. INSTRUCTED US TO CONTINUE APCH. LANDED UNEVENTFULLY. CLASSIC READBACK - HEARBACK ERROR.
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.