diff --git a/cmd/lotus-storage-miner/info.go b/cmd/lotus-storage-miner/info.go
index edefacf4d..f14d307ab 100644
--- a/cmd/lotus-storage-miner/info.go
+++ b/cmd/lotus-storage-miner/info.go
@@ -307,6 +307,7 @@ var stateList = []stateMeta{
 	{col: color.FgCyan, state: sealing.Removed},
 
 	{col: color.FgRed, state: sealing.FailedUnrecoverable},
+	{col: color.FgRed, state: sealing.AddPieceFailed},
 	{col: color.FgRed, state: sealing.SealPreCommit1Failed},
 	{col: color.FgRed, state: sealing.SealPreCommit2Failed},
 	{col: color.FgRed, state: sealing.PreCommitFailed},
diff --git a/extern/storage-sealing/fsm.go b/extern/storage-sealing/fsm.go
index a1739a1cc..c38101e6c 100644
--- a/extern/storage-sealing/fsm.go
+++ b/extern/storage-sealing/fsm.go
@@ -51,6 +51,7 @@ var fsmPlanners = map[SectorState]func(events []statemachine.Event, state *Secto
 	AddPiece: planOne(
 		on(SectorPieceAdded{}, WaitDeals),
 		apply(SectorStartPacking{}),
+		on(SectorAddPieceFailed{}, AddPieceFailed),
 	),
 	Packing: planOne(on(SectorPacked{}, GetTicket)),
 	GetTicket: planOne(
@@ -104,6 +105,7 @@ var fsmPlanners = map[SectorState]func(events []statemachine.Event, state *Secto
 
 	// Sealing errors
 
+	AddPieceFailed: planOne(),
 	SealPreCommit1Failed: planOne(
 		on(SectorRetrySealPreCommit1{}, PreCommit1),
 	),
diff --git a/extern/storage-sealing/fsm_events.go b/extern/storage-sealing/fsm_events.go
index 98cf18308..14015c2d8 100644
--- a/extern/storage-sealing/fsm_events.go
+++ b/extern/storage-sealing/fsm_events.go
@@ -95,6 +95,11 @@ func (evt SectorPieceAdded) apply(state *SectorInfo) {
 	state.Pieces = append(state.Pieces, evt.NewPieces...)
 }
 
+type SectorAddPieceFailed struct{ error }
+
+func (evt SectorAddPieceFailed) FormatError(xerrors.Printer) (next error) { return evt.error }
+func (evt SectorAddPieceFailed) apply(si *SectorInfo)                     {}
+
 type SectorStartPacking struct{}
 
 func (evt SectorStartPacking) apply(*SectorInfo) {}
diff --git a/extern/storage-sealing/input.go b/extern/storage-sealing/input.go
index 89cd27176..51e4356fa 100644
--- a/extern/storage-sealing/input.go
+++ b/extern/storage-sealing/input.go
@@ -117,7 +117,7 @@ func (m *Sealing) handleAddPiece(ctx statemachine.Context, sector SectorInfo) er
 	}
 	m.inputLk.Unlock()
 	if !ok {
-		// nothing to do here
+		// nothing to do here (might happen after a restart in AddPiece)
 		return ctx.Send(res)
 	}
 
@@ -166,7 +166,7 @@ func (m *Sealing) handleAddPiece(ctx statemachine.Context, sector SectorInfo) er
 			if err != nil {
 				err = xerrors.Errorf("writing padding piece: %w", err)
 				deal.accepted(sector.SectorNumber, offset, err)
-				return err // todo failed state
+				return ctx.Send(SectorAddPieceFailed{err})
 			}
 
 			pieceSizes = append(pieceSizes, p.Unpadded())
@@ -183,7 +183,7 @@ func (m *Sealing) handleAddPiece(ctx statemachine.Context, sector SectorInfo) er
 		if err != nil {
 			err = xerrors.Errorf("writing piece: %w", err)
 			deal.accepted(sector.SectorNumber, offset, err)
-			return err // todo failed state
+			return ctx.Send(SectorAddPieceFailed{err})
 		}
 
 		deal.accepted(sector.SectorNumber, offset, nil)
@@ -200,6 +200,12 @@ func (m *Sealing) handleAddPiece(ctx statemachine.Context, sector SectorInfo) er
 	return ctx.Send(res)
 }
 
+func (m *Sealing) handleAddPieceFailed(ctx statemachine.Context, sector SectorInfo) error {
+	log.Errorf("No recovery plan for AddPiece failing")
+	// todo: cleanup sector / just go retry (requires adding offset param to AddPiece in sector-storage for this to be safe)
+	return nil
+}
+
 func (m *Sealing) AddPieceToAnySector(ctx context.Context, size abi.UnpaddedPieceSize, data storage.Data, deal DealInfo) (abi.SectorNumber, abi.PaddedPieceSize, error) {
 	log.Infof("Adding piece for deal %d (publish msg: %s)", deal.DealID, deal.PublishCid)
 	if (padreader.PaddedSize(uint64(size))) != size {
diff --git a/extern/storage-sealing/sector_state.go b/extern/storage-sealing/sector_state.go
index da3db401b..ae5b4fab2 100644
--- a/extern/storage-sealing/sector_state.go
+++ b/extern/storage-sealing/sector_state.go
@@ -7,6 +7,7 @@ var ExistSectorStateList = map[SectorState]struct{}{
 	WaitDeals:            {},
 	Packing:              {},
 	AddPiece:             {},
+	AddPieceFailed:       {},
 	GetTicket:            {},
 	PreCommit1:           {},
 	PreCommit2:           {},
@@ -61,6 +62,7 @@ const (
 	Proving        SectorState = "Proving"
 	// error modes
 	FailedUnrecoverable  SectorState = "FailedUnrecoverable"
+	AddPieceFailed       SectorState = "AddPieceFailed"
 	SealPreCommit1Failed SectorState = "SealPreCommit1Failed"
 	SealPreCommit2Failed SectorState = "SealPreCommit2Failed"
 	PreCommitFailed      SectorState = "PreCommitFailed"