# NTSB DCA72AZ012: Dehavilland DHC-6, N4043B, Appleton, WI, June 29, 1972 - Type: NTSB accident investigation - Classification: Accident · Fatal · Closed - Date: June 29, 1972 - Place: Appleton, WI · APPLETON, WI - Location: 44.2798° N, 88.3883° W: Placed by OpenAirDocs: center of Appleton, WI, within about 6 miles (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=44.2798&lon=-88.3883&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: Fatal - Injuries: 13 fatal - Status: Completed, report May 21, 1973 - Report: Brief approved by the director - Safety recommendations: Yes - NTSB case key (mKey): 79631 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA72AZ012 - Page: https://openairdocs.org/ntsb/DCA72AZ012 ## NTSB brief (aircraft 2) ``` ----------------------------------------------------------------------------------------------------------------------------  FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA                                                                F  S M/N     PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 1-0005  72/6/29  NR.APPLETON,WIS       CONVAIR 580         CR-  3  0  0  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE         TIME - 0937                    N90858              PX-  2  0  0                            50, 15688 TOTAL HOURS,                                        DAMAGE-DESTROYED    OT-  8  0  0                            3079 IN TYPE, INSTRUMENT                                                                                                    RATED.         OPERATOR - NORTH CENTRAL AIRLINES,INC.         DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP           GREEN BAY,WIS               CHICAGO,ILL                  OSHKOSH,WIS         TYPE OF ACCIDENT                                         PHASE OF OPERATION            COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: NORMAL CRUISE         PROBABLE CAUSE(S)            PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT            PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT         FACTOR(S)            WEATHER - OBSTRUCTIONS TO VISION            MISCELLANEOUS ACTS,CONDITIONS - SUNGLARE            MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER         WEATHER BRIEFING - COMPANY DISPATCH         WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT         SKY CONDITION                                            CEILING AT ACCIDENT SITE           SCATTERED                                                 2000         VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE           5 OR OVER(UNLIMITED)                                     NONE         OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F           HAZE                                                      80         WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS           360                                                       10         TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN           VFR                                                      VFR          SPECIAL DATA           SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-US AIR CARRIER           CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT           TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - NO           EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN          FIRE AFTER IMPACT         REMARKS- BOTH CREWS FAILED TO SEE AND AVOID.DETECTION REDUCED BY ATMOSPHERIC COND & HUMAN VISUAL LIMITATION ``` ## NTSB brief (aircraft 1) ``` ----------------------------------------------------------------------------------------------------------------------------  FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA                                                                F  S M/N     PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 1-0005  72/6/29  NR.APPLETON,WIS       DEHAVILLAND DHC-6   CR-  2  0  0  COMMERCIAL                AIRLINE TRANSPORT, AGE         TIME - 0937                    N4043B              PX-  6  0  0  COMMUTER AIR CARRIER      28, 6556 TOTAL HOURS,                                        DAMAGE-DESTROYED    OT-  5  0  0  AIR TAXI-PASSG S-D        3412 IN TYPE, INSTRUMENT                                                                                                    RATED.         DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP           CHICAGO,ILL                APPLETON,WIS                  SHEBOYGAN,WIS         TYPE OF ACCIDENT                                         PHASE OF OPERATION            COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: NORMAL CRUISE         PROBABLE CAUSE(S)            PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT            PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT         FACTOR(S)            WEATHER - OBSTRUCTIONS TO VISION            MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER         WEATHER BRIEFING - UNKNOWN/NOT REPORTED         WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT         SKY CONDITION                                            CEILING AT ACCIDENT SITE           SCATTERED                                                 2000         VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE           5 OR OVER(UNLIMITED)                                     NONE         OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F           HAZE                                                      80         WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS           360                                                       10         TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN           VFR                                                      VFR          SPECIAL DATA           SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-US AIR CARRIER           CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT           TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - NO           EVASIVE ACTION TAKEN - UNKNOWN/NOT REPORTED              ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN          FIRE AFTER IMPACT         REMARKS- BOTH ACFT SANK IN LAKE WINNEBAGO. ``` ## Aircraft 1 - Registration: [N4043B](https://openairdocs.org/deregistered/N4043B-1972-11-30), registration cancelled 1972-11-30, S/N 13 (OpenAirDocs) - Reported make and model: DEHAVILLAND DHC-6 - Registry model: [Dehavilland DHC-6 TWIN OTTER](https://openairdocs.org/model/dehavilland-dhc-6-twin-otter) (registry code 2802606) (OpenAirDocs) - Category: Airplane - Engines: turbo prop - Damage: Destroyed ## Aircraft 2 - Registration: [N90858](https://openairdocs.org/deregistered/N90858-1973-06-27), registration cancelled 1973-06-27, S/N 83 (OpenAirDocs) - Reported make and model: CONVAIR 580 - Registry model: [Convair 340/440](https://openairdocs.org/model/convair-340-440) (registry code 2422801) (OpenAirDocs) - Category: Airplane - Engines: turbo prop - Damage: Destroyed 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.