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Air carrier PIC poses an operational problem that might defy an immediate answer. Relates to 'boat in harbor' and when the note on IAP ILS approach CAT IIIA is in effect. Proximity of approach route.
| Attributes | |
| ACN | 268568 |
| Time | |
| Date | 199404 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bos |
| State Reference | MA |
| Altitude | agl bound lower : 300 agl bound upper : 300 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : bos tower : fyv |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Route In Use | approach : straight in |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 15000 flight time type : 1100 |
| ASRS Report | 268568 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : ground less severe non adherence : published procedure other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
CAT III ILS bos 4R at 300 ft tower called to notify us that a ship of unknown size was moving in the harbor. This was our 1ST notification. I elected to continue believing we were probably already at the harbor, and by the time any altitude could have been gained on a missed, we would be over the runway. I am unsure, however, if this was the correct action and if there really is any danger of a collision. There is a note on the CAT ii/III approach plate which says that the CAT ii/III procedure is not authority/authorized with a ship harbor but what does that mean to me at 300 ft AGL? Also, if there is a collision danger, the note should reflect this. Also, shouldn't approach control have notified us earlier? This was a really bad feeling at 300 ft!
Original NASA ASRS Text
Title: ACR PIC POSES AN OPERATIONAL PROB THAT MIGHT DEFY AN IMMEDIATE ANSWER. RELATES TO 'BOAT IN HARBOR' AND WHEN THE NOTE ON IAP ILS APCH CAT IIIA IS IN EFFECT. PROX OF APCH RTE.
Narrative: CAT III ILS BOS 4R AT 300 FT TWR CALLED TO NOTIFY US THAT A SHIP OF UNKNOWN SIZE WAS MOVING IN THE HARBOR. THIS WAS OUR 1ST NOTIFICATION. I ELECTED TO CONTINUE BELIEVING WE WERE PROBABLY ALREADY AT THE HARBOR, AND BY THE TIME ANY ALT COULD HAVE BEEN GAINED ON A MISSED, WE WOULD BE OVER THE RWY. I AM UNSURE, HOWEVER, IF THIS WAS THE CORRECT ACTION AND IF THERE REALLY IS ANY DANGER OF A COLLISION. THERE IS A NOTE ON THE CAT II/III APCH PLATE WHICH SAYS THAT THE CAT II/III PROC IS NOT AUTH WITH A SHIP HARBOR BUT WHAT DOES THAT MEAN TO ME AT 300 FT AGL? ALSO, IF THERE IS A COLLISION DANGER, THE NOTE SHOULD REFLECT THIS. ALSO, SHOULDN'T APCH CTL HAVE NOTIFIED US EARLIER? THIS WAS A REALLY BAD FEELING AT 300 FT!
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.