ACN 2301459 | category A | set main

Date: 202511
Local time: 0001-0600
Aircraft 1: Commercial Fixed Wing
Crew size: 2
Flight phase: Landing
Reporter 1 function: First Officer; Pilot Not Flying
Reporter 1 qualification: Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Anomaly: Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Unstabilized Approach
Result: General None Reported / Taken
Contributing factors: Human Factors
Primary problem: Human Factors

Narrative 1: During arrival briefing capt insisted on using flaps 3.   I asked about landing distance seemed adequate.  Rnav y 29 was planned and flown .  Last 100 feet path got flat and low.  I mentioned that he cannot land on the displaced threshold.   At around 30-50 ft.  Capt pitch for runway threshold and may have landed on displaced theshold.   I think he landed on available runway; but not positive….Cause: Capt insisted on flaps 3 on a short runway.  I did the landing distance and it was approximately 300 ft more than flaps full.   My rationale was that sbp runway was 300-400 ft longer than sna so it should work out.   Capt for some unknown reason insisted on flaps 3.  He mentioned that as an Fo; other capts would say no.

Synopsis: Air carrier pilot reported a possible touch down in the displaced threshold area on landing at SBP.