# NTSB LAX84LA312: Cessna 172N, N734TH, Hayward, CA, May 21, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 21, 1984, 16:30 local (23:30 UTC)
- Place: Hayward, CA
- Coordinates: 37.669776, -122.079055 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.6698&lon=-122.0791&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24278
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA312
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24278/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA312

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Hard landing, landing - flare/touchdown
  - flare - improper, pilot in command (cause)
  - total, pilot in command (cause)
  - recovery from bounced landing - improper, pilot in command (cause)
  - lack of recent total experience, pilot in command (cause)
  - go-around - delayed, pilot in command (cause)
  - inadequate transition/upgrade training, pilot in command (cause)
  - flight controls - improper use of, pilot in command (cause)
  - fuselage,instrument/electrical panel - distorted (contributing factor)
  - flt control syst,aileron control - movement restricted (contributing factor)
  - flt control syst,elevator control - movement restricted (contributing factor)
  - fuselage,floor - buckled (contributing factor)
  - landing gear,nose gear assembly - distorted (contributing factor)
  - fuselage,bulkhead - buckled (contributing factor)
  - fuselage,skin - incorrect (contributing factor)

## Analysis

THE ACFT LANDED HARD AND PORPOISED DOWN THE RWY. THE PLT MADE A GO-AROUND AND REPORTED TO THE TOWER THAT HE HAD CONTROL PROBLEMS. HE PERFORMED A TOWER FLY-BY AND NO DAMAGE WAS APPARENT TO THE CONTROLLERS. THE PLT WAS CLEARED FOR LANDING ANDDID SO WITHOUT FURTHER INCIDENT. UPON INSPECTION,THE FIRE WALL WAS FOUND TO BE BUCKLED,THE NOSE WHEEL STRUT CANTED THE FUSELAGE WAS WRINKLED AND THE FLOOR WAS CAVED IN SO THAT THE VERTICAL INSTRUMENT PANEL SUPPORT WAS PULLED DOWN ON THE PUSH-PULL ROD FOR THE AILERON AND ELEVATOR.

## Aircraft

- Registration: [N734TH](https://openairdocs.org/deregistered/N734TH-2001-10-24), registration cancelled 2001-10-24, S/N 17269097, built 1977 (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17269097
- Airframe hours: 2941
- Engines: LYCOMING O-320 HZAD 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Siegel Aviation
- Registered owner: Gent M. Jay
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 8, 1984
- Departed: HWD, HAYWARD, CA
- Airport: HWD, Hayward Air Terminal, runway 28R, 3,536 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 91 total, 91 in this make and model, 29 as pilot in command, 5 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 10 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Altimeter: 29.00 inHg
- Observed at: HWD

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19840521059589A](https://openairdocs.org/incident/19840521059589A), May 21, 1984: Cessna 172N, Hayward, CA, Substantial damage. Bounced and porpoised then made a goaround reporting control problems. After landing controls binding by bent floor

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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