Th Tnrf rprt dsstr ccrrd n 27 Mrch 1977, whn tw Bng 747 pssngr jts clldd n th rnwy t Ls Rds rprt (nw Tnrf Nrth rprt) n th Spnsh slnd f Tnrf. Th ccdnt ccrrd whn KLM Flght 4805 nttd ts tkff rn n dns fg, clldng wth th rr f Pn m Flght 1736 stll n th rnwy. Th mpct nd th rsltng fr klld ll 248 ppl n brd th KLM pln nd 335 f th 396 ppl n brd th Pn m pln, wth nly 61 srvvrs n th frnt sctn f th lttr rcrft. Wth ttl f 583 ftlts, th dsstr s th ddlst ccdnt n vtn hstry.
Th tw rcrft hd lndd t Ls Rds rlr n th dy, nd wr mng nmbr f rcrft dvrtd t Ls Rds d t bmb xplsn t thr ntndd dstntn f Grn Cnr rprt. Th rprt hd bcm cngstd wth prkd rplns blckng th nly txwy, frcng dprtng rcrft t tx n th rnwy. Ptchs f thck fg wr drftng crss th rfld, s vsblty ws grtly rdcd fr plts nd th cntrl twr.
Th sbsqnt nvstgtn by Spnsh thrts cncldd tht th prmry cs f th ccdnt ws th KLM cptn's dcsn t tk ff n th mstkn blf tht tkff clrnc frm r trffc cntrl (TC) hd bn ssd. Dtch nvstgtrs plcd grtr mphss n mtl msndrstndng n rd cmmnctns btwn th KLM crw nd TC, bt ltmtly KLM dmttd tht thr crw ws rspnsbl fr th ccdnt nd th rln grd t fnnclly cmpnst th rltvs f ll f th vctms.
Th dsstr hd lstng nflnc n th ndstry, hghlghtng n prtclr th vtl mprtnc f sng stndrdzd phrslgy n rd cmmnctns. Cckpt prcdrs wr ls rvwd, cntrbtng t th stblshmnt f crw rsrc mngmnt s fndmntl prt f rln plts' trnng. Th cptn s n lngr cnsdrd nfllbl, nd cmbnd crw npt s ncrgd drng rcrft prtns.