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Tower departure controller issued wrong altitude to small aircraft departure off pih which caused less than standard separation with air carrier in holding pattern. Air carrier aircraft responded to TCASII RA and climbed in holding pattern.
| Attributes | |
| ACN | 254620 |
| Time | |
| Date | 199310 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pih |
| State Reference | ID |
| Altitude | msl bound lower : 7000 msl bound upper : 7500 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft |
| Flight Phase | climbout : intermediate altitude descent other |
| Route In Use | enroute : direct enroute airway : zlc |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, High Wing, 2 Turboprop Eng |
| Flight Phase | other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar pilot : private |
| Experience | controller military : 3 controller non radar : 22 controller radar : 21 |
| ASRS Report | 254620 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 6000 vertical : 500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Inter Facility Coordination Failure |
Narrative:
Center controller issued a clearance for a single engine small aircraft X to depart pih, climb to 7000 ft MSL, direct to tyhee. Air carrier Y was holding at tyhee at 8000 ft MSL. Pih misunderstood the center controller's wishes and cleared the departure to climb to 8000 ft MSL. The small aircraft X departure climbed to 7500 ft MSL before the controller issued a clearance to descend to 7000 ft MSL. The small aircraft X reported the air carrier Y (an mdt) in sight. Air carrier Y was equipped with TCASII, the pilot climbed to 9000 ft MSL. The 2 aircraft were within 500 ft and 1 mi at the closest point.
Original NASA ASRS Text
Title: TWR DEP CTLR ISSUED WRONG ALT TO SMA DEP OFF PIH WHICH CAUSED LTSS WITH ACR IN HOLDING PATTERN. ACR ACFT RESPONDED TO TCASII RA AND CLBED IN HOLDING PATTERN.
Narrative: CTR CTLR ISSUED A CLRNC FOR A SINGLE ENG SMA X TO DEPART PIH, CLB TO 7000 FT MSL, DIRECT TO TYHEE. ACR Y WAS HOLDING AT TYHEE AT 8000 FT MSL. PIH MISUNDERSTOOD THE CTR CTLR'S WISHES AND CLRED THE DEP TO CLB TO 8000 FT MSL. THE SMA X DEP CLBED TO 7500 FT MSL BEFORE THE CTLR ISSUED A CLRNC TO DSND TO 7000 FT MSL. THE SMA X RPTED THE ACR Y (AN MDT) IN SIGHT. ACR Y WAS EQUIPPED WITH TCASII, THE PLT CLBED TO 9000 FT MSL. THE 2 ACFT WERE WITHIN 500 FT AND 1 MI AT THE CLOSEST POINT.
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.