# NTSB OAK76DVM48: Schlemeyer, N713S, Portola Valley, CA, September 30, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 30, 1976
- Place: Portola Valley, CA · PORTOLA VALLEY, CA
- Location: 37.3652° N, 122.2330° W: Placed by OpenAirDocs: center of Portola Valley, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.3652&lon=-122.2330&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 1, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 155235
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK76DVM48
- Page: https://openairdocs.org/ntsb/OAK76DVM48

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2810  76/9/30    PORTOLA VALLEY,CA   SCHLEMEYER          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 52, 1609
        TIME - 1400                    N713S               PX-  0  0  0  PRACTICE                  TOTAL HOURS, 52 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PALO ALTO,CA                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: OTHER
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - LUBRICATING SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - OIL STARVATION
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- INVERTED OIL SYSTEM PICK-UP FLOP TUBE HUNG UP ON DIP STICK IN INVERTED FLT.
```

## Aircraft

- Registration: [N713S](https://openairdocs.org/aircraft/N713S), registered now, S/N 11, built 1968 (OpenAirDocs)
- Reported make and model: SCHLEMEYER
- Registry model: [Schlemeyer JUNGMEISTER REPLICA](https://openairdocs.org/model/schlemeyer-jungmeister-replica) (registry code 1590372) (OpenAirDocs)
- Registry engine: [Warner SCARAB series](https://openairdocs.org/engine/warner-scarab-series) (registry code 64502, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage

## 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 19760930030199A](https://openairdocs.org/incident/19760930030199A), Sep 30, 1976: Buker JUNGMISTR1, Portola Valley, CA, Substantial damage. Inverted oil system pick-up flop tube hung up on dip stick in inverted flt.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.