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Small transport aircraft had unsafe gear indication for right main, broke off approach, orbited airport doing emergency checklist. Unable to obtain a safe indication, pilot diverted to another airport. After landing the gear light came on indicative of a stuck switch.
| Attributes | |
| ACN | 347340 |
| Time | |
| Date | 199609 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : thv airport : mdt |
| State Reference | PA |
| Altitude | agl bound lower : 0 agl bound upper : 3000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mdt tower : lft |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach descent other |
| Route In Use | enroute airway : mdt |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 150 flight time total : 2100 flight time type : 30 |
| ASRS Report | 347340 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other flight crewa other other : unspecified cockpit |
| Resolutory Action | flight crew : declared emergency none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
After crossing FAF inbound to thv, gear selector was placed down. Only the nose and left main gear green lights illuminated and the red unlocked light was on. We recycled the gear but the indications were the same. We terminated the approach and orbited northeast of the field and executed the appropriate emergency checklist per the flight manual. After executing the checklist, we contacted harrisburg approach to get vectors to mdt. While en route we called local FBO to relay message to our home base. We executed an ILS at mdt with low approach to verify that the landing gear was down. According to the tower the landing gear appeared to be down. We made a right traffic pattern and landed uneventfully. Upon touching down the right main gear light came on, indicating that the gear light switch was stuck. A mechanic replaced the switch. We requested to have emergency vehicles standing by, however, we never verbally declared an emergency.
Original NASA ASRS Text
Title: SMT ACFT HAD UNSAFE GEAR INDICATION FOR R MAIN, BROKE OFF APCH, ORBITED ARPT DOING EMER CHKLIST. UNABLE TO OBTAIN A SAFE INDICATION, PLT DIVERTED TO ANOTHER ARPT. AFTER LNDG THE GEAR LIGHT CAME ON INDICATIVE OF A STUCK SWITCH.
Narrative: AFTER XING FAF INBOUND TO THV, GEAR SELECTOR WAS PLACED DOWN. ONLY THE NOSE AND L MAIN GEAR GREEN LIGHTS ILLUMINATED AND THE RED UNLOCKED LIGHT WAS ON. WE RECYCLED THE GEAR BUT THE INDICATIONS WERE THE SAME. WE TERMINATED THE APCH AND ORBITED NE OF THE FIELD AND EXECUTED THE APPROPRIATE EMER CHKLIST PER THE FLT MANUAL. AFTER EXECUTING THE CHKLIST, WE CONTACTED HARRISBURG APCH TO GET VECTORS TO MDT. WHILE ENRTE WE CALLED LCL FBO TO RELAY MESSAGE TO OUR HOME BASE. WE EXECUTED AN ILS AT MDT WITH LOW APCH TO VERIFY THAT THE LNDG GEAR WAS DOWN. ACCORDING TO THE TWR THE LNDG GEAR APPEARED TO BE DOWN. WE MADE A R TFC PATTERN AND LANDED UNEVENTFULLY. UPON TOUCHING DOWN THE R MAIN GEAR LIGHT CAME ON, INDICATING THAT THE GEAR LIGHT SWITCH WAS STUCK. A MECH REPLACED THE SWITCH. WE REQUESTED TO HAVE EMER VEHICLES STANDING BY, HOWEVER, WE NEVER VERBALLY DECLARED AN EMER.
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.