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19970716026719I

Incident · Minor damage
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FAA incident report · Cessna 172RG · San Diego, CA · July 16, 1997

FAA Aviation Safety Information Portal

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Date
July 16, 1997 · 19:09 local
Place
San Diego, CA
Airport
Montgomery Field Airport
Phase of flight
Touch And Go Landing
Operating rules
Pilot school (Part 141)
Damage
Minor damage
Aircraft
N6273R
Reported as
Cessna 172RG
Reported engine
Lycoming O360*
People aboard
2
Fatal injuries
0
Pilot’s flight hours
409 total336 in this make and model156 in the last 90 days
N6273RRegistration cancelled Dec 10, 1999 · Cessna 172RGS/N 172RG0135Airframe modelCessna 172RG

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Narrative: on Wednesday, July 16, 1997, at approximately 1620 PDT, CFI nicklas turesson and student pilot lilit grigorian departed Montgomery field (myf), San Diego, CA in N6273R, a Cessna model 172RG, for a FAR part 141 training flight. The flight was to another local airport, brown field (sdm), to conduct landing and take off/touch and go, operations. While at sdm, turesson was notified via radio from another aircraft that during his last touch and go, the nose wheel assembly had fallen off N6273R. Turesson decided to return to myf to conduct the emergency landing. At approximately 1909 PDT, turesson made a successful landing at myf. The aircraft sustained minor damage. Neither turesson nor grigorian were injured; no fire resulted. Investigation determined that the nose wheel assembly axle bolt, AN5-47, had failed in the threaded area. Inspection of the bolt indicated that a pre-existing fracture of the bolt had occurred, time unknown. A review of the maintenance records indicated that on 6/6/97, N6273R experienced a hard landing. Inspection of the aircraft did not find any damage to the nose wheel/landing gear assembly. Note: a visual inspection of this bolt would not have determined that the bolt was cracked. The CFI indicated that the landings experienced on this flight were not exceedingly hard. The cesna 172RG is the aircraft utilized for primary training for all of the school's students. The operator has initiated an added maintenance item that will replace the NLG axle bolt every time the NLG tire is replaced. This incident did not involve a NMAC or a pilot deviation. FAA form 8010-4, malfunction or defect report will be filed.

As the FAA filed it

NARRATIVE: ON WEDNESDAY, JULY 16, 1997, AT APPROXIMATELY 1620 PDT, CFI NICKLAS TURESSON AND STUDENT PILOT LILIT GRIGORIAN DEPARTED MONTGOMERY FIELD (MYF), SAN DIEGO, CA IN N6273R, A CESSNA MODEL 172RG, FOR A FAR PART 141 TRAINING FLIGHT. THE FLIGHT WAS TO ANOTHER LOCAL AIRPORT, BROWN FIELD (SDM), TO CONDUCT LANDING AND TAKE OFF/TOUCH AND GO, OPERATIONS. WHILE AT SDM, TURESSON WAS NOTIFIED VIA RADIO FROM ANOTHER AIRCRAFT THAT DURING HIS LAST TOUCH AND GO, THE NOSE WHEEL ASSEMBLY HAD FALLEN OFF N6273R. TURESSON DECIDED TO RETURN TO MYF TO CONDUCT THE EMERGENCY LANDING. AT APPROXIMATELY 1909 PDT, TURESSON MADE A SUCCESSFUL LANDING AT MYF. THE AIRCRAFT SUSTAINED MINOR DAMAGE. NEITHER TURESSON NOR GRIGORIAN WERE INJURED; NO FIRE RESULTED. INVESTIGATION DETERMINED THAT THE NOSE WHEEL ASSEMBLY AXLE BOLT, AN5-47, HAD FAILED IN THE THREADED AREA. INSPECTION OF THE BOLT INDICATED THAT A PRE-EXISTING FRACTURE OF THE BOLT HAD OCCURRED, TIME UNKNOWN. A REVIEW OF THE MAINTENANCE RECORDS INDICATED THAT ON 6/6/97, N6273R EXPERIENCED A HARD LANDING. INSPECTION OF THE AIRCRAFT DID NOT FIND ANY DAMAGE TO THE NOSE WHEEL/LANDING GEAR ASSEMBLY. NOTE: A VISUAL INSPECTION OF THIS BOLT WOULD NOT HAVE DETERMINED THAT THE BOLT WAS CRACKED. THE CFI INDICATED THAT THE LANDINGS EXPERIENCED ON THIS FLIGHT WERE NOT EXCEEDINGLY HARD. THE CESNA 172RG IS THE AIRCRAFT UTILIZED FOR PRIMARY TRAINING FOR ALL OF THE SCHOOL'S STUDENTS. THE OPERATOR HAS INITIATED AN ADDED MAINTENANCE ITEM THAT WILL REPLACE THE NLG AXLE BOLT EVERY TIME THE NLG TIRE IS REPLACED. THIS INCIDENT DID NOT INVOLVE A NMAC OR A PILOT DEVIATION. FAA FORM 8010-4, MALFUNCTION OR DEFECT REPORT WILL BE FILED.