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Near midair collision between a C650 on a missed approach and an unannounced blimp at 1300 ft 2 NM northwest of mry, ca.
| Attributes | |
| ACN | 595711 |
| Time | |
| Date | 200310 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : mry.airport |
| State Reference | CA |
| Altitude | msl single value : 1300 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : nct.tracon |
| Operator | general aviation : personal |
| Make Model Name | Citation III, VI, VII |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | ils localizer & glide slope : 10r |
| Flight Phase | landing : missed approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Other |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 25 flight time total : 9500 flight time type : 2000 |
| ASRS Report | 595711 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : undershoot conflict : nmac non adherence : required legal separation non adherence : published procedure other anomaly other anomaly other |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 500 vertical : 500 |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure |
Narrative:
On a vector from sns VOR for an ILS runway 10R at mry, crew received a bad vector (late turn) to intercept localizer. Upon intercept, the GS indicated aircraft was 1 1/2 dots high on GS. Aircraft broke out of clouds at approximately 1200 ft MSL with a 1 DOT high GS indication, and localizer centered. At this point the aircraft was not in a position for a normal descent and landing. Crew executed the published missed approach. During the climb and turn to a 325 degree heading, the aircraft broke out of the cloud tops and the crew immediately saw a blimp. We continued the turn to 325 degrees while increasing the bank angle to avoid the blimp. While in the turn, crew received the TCASII alert followed by an RA. Once clear of the blimp, the TCASII cleared. This could have been avoided had there not been a blimp, on top, on the published missed approach area of an airport actively using an instrument approach
Original NASA ASRS Text
Title: NMAC BTWN A C650 ON A MISSED APCH AND AN UNANNOUNCED BLIMP AT 1300 FT 2 NM NW OF MRY, CA.
Narrative: ON A VECTOR FROM SNS VOR FOR AN ILS RWY 10R AT MRY, CREW RECEIVED A BAD VECTOR (LATE TURN) TO INTERCEPT LOC. UPON INTERCEPT, THE GS INDICATED ACFT WAS 1 1/2 DOTS HIGH ON GS. ACFT BROKE OUT OF CLOUDS AT APPROX 1200 FT MSL WITH A 1 DOT HIGH GS INDICATION, AND LOC CTRED. AT THIS POINT THE ACFT WAS NOT IN A POS FOR A NORMAL DSCNT AND LNDG. CREW EXECUTED THE PUBLISHED MISSED APCH. DURING THE CLB AND TURN TO A 325 DEG HDG, THE ACFT BROKE OUT OF THE CLOUD TOPS AND THE CREW IMMEDIATELY SAW A BLIMP. WE CONTINUED THE TURN TO 325 DEGS WHILE INCREASING THE BANK ANGLE TO AVOID THE BLIMP. WHILE IN THE TURN, CREW RECEIVED THE TCASII ALERT FOLLOWED BY AN RA. ONCE CLR OF THE BLIMP, THE TCASII CLRED. THIS COULD HAVE BEEN AVOIDED HAD THERE NOT BEEN A BLIMP, ON TOP, ON THE PUBLISHED MISSED APCH AREA OF AN ARPT ACTIVELY USING AN INST APCH
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.