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Contrary to ATC clearance, instructor pilot with an instrument student enters the wrong traffic pattern on downwind leg.
| Attributes | |
| ACN | 318270 |
| Time | |
| Date | 199510 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ash |
| State Reference | NH |
| Altitude | msl bound lower : 1200 msl bound upper : 1200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : ash tracon : zbw |
| Operator | general aviation : instructional |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent : approach other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | instruction : instructor oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 6 flight time total : 7300 flight time type : 2300 |
| ASRS Report | 318270 |
| Person 2 | |
| Affiliation | Other |
| Function | instruction : trainee |
| Qualification | pilot : private |
| Events | |
| Anomaly | non adherence : clearance other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Manchester approach cleared my student for a visual approach approximately 12 mi northwest of nashua's runway 14/32. Upon contacting nashua tower the student reported to the southwest. We were asked to report a midfield left downwind for runway 32. I corrected the student and he updated his position as northwest. We were also advised of other traffic approaching the left downwind. I began flying the aircraft at this time to allow the student time to orient himself. I flew the extended centerline until about 4 mi from the departure end of runway 32. I then turned toward the left downwind. Less than a mile later the student insists we are entering the wrong downwind. Assuming the student might be listening more closely, I moved to the right downwind which is the tower preferred pattern. I returned control to the student prior to a midfield right downwind but (unknown to me at the time) he reported a midfield left downwind. The other traffic also reported a midfield left downwind. The tower couldn't see us nor the other aircraft. A tense exchange with both aircraft lasted about 2 mins by which time our traffic was on short final and we were turning a wide (to avoid unseen traffic) base. I teach pilots to be willing to accept challenges. I must also remember sometimes those challenges are wrong.
Original NASA ASRS Text
Title: CONTRARY TO ATC CLRNC, INSTRUCTOR PLT WITH AN INST STUDENT ENTERS THE WRONG TFC PATTERN ON DOWNWIND LEG.
Narrative: MANCHESTER APCH CLRED MY STUDENT FOR A VISUAL APCH APPROX 12 MI NW OF NASHUA'S RWY 14/32. UPON CONTACTING NASHUA TWR THE STUDENT RPTED TO THE SW. WE WERE ASKED TO RPT A MIDFIELD L DOWNWIND FOR RWY 32. I CORRECTED THE STUDENT AND HE UPDATED HIS POS AS NW. WE WERE ALSO ADVISED OF OTHER TFC APCHING THE L DOWNWIND. I BEGAN FLYING THE ACFT AT THIS TIME TO ALLOW THE STUDENT TIME TO ORIENT HIMSELF. I FLEW THE EXTENDED CTRLINE UNTIL ABOUT 4 MI FROM THE DEP END OF RWY 32. I THEN TURNED TOWARD THE L DOWNWIND. LESS THAN A MILE LATER THE STUDENT INSISTS WE ARE ENTERING THE WRONG DOWNWIND. ASSUMING THE STUDENT MIGHT BE LISTENING MORE CLOSELY, I MOVED TO THE R DOWNWIND WHICH IS THE TWR PREFERRED PATTERN. I RETURNED CTL TO THE STUDENT PRIOR TO A MIDFIELD R DOWNWIND BUT (UNKNOWN TO ME AT THE TIME) HE RPTED A MIDFIELD L DOWNWIND. THE OTHER TFC ALSO RPTED A MIDFIELD L DOWNWIND. THE TWR COULDN'T SEE US NOR THE OTHER ACFT. A TENSE EXCHANGE WITH BOTH ACFT LASTED ABOUT 2 MINS BY WHICH TIME OUR TFC WAS ON SHORT FINAL AND WE WERE TURNING A WIDE (TO AVOID UNSEEN TFC) BASE. I TEACH PLTS TO BE WILLING TO ACCEPT CHALLENGES. I MUST ALSO REMEMBER SOMETIMES THOSE CHALLENGES ARE WRONG.
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.